Sunday, February 27, 2011

Whisky

Whisky (Scottish English) or whiskey (Hiberno-English) is a type of distilled alcoholic beverage made from fermented grain mash. Different grains are used for different varieties, including barleymalted barleyrye, malted rye, wheat, and maize (corn). Whisky is aged in wooden casks, made generally of white oak, except that in the United States corn whiskey need not be aged.
Whisky is a strictly regulated spirit worldwide with many competing denominations of origin and many classes and types. The typical unifying characteristics of the different classes and types are the fermentation of grains, distillation, and aging in wood. Indian whisky is an exception, where grain fermentation is not a requirement and the most common basis is fermented molasses. The requirement for aging in wood is also not entirely universal.


Etymology:
Whiskey is a shortened form of usquebaugh, which English borrowed from Goidelic languages (Irish Language uisce beatha and Scottish uisge beatha) meaning literally "water of life". It meant the same thing as the Latin aqua vītae which had been applied to distilled drinks since early 14th century. Other early spellings include usquebea (1706) and iskie bae (1583). In the Irish Annals of Clonmacnoise in 1405, the first written record of whiskey appears describing the death of a chieftain at Christmas from "taking a surfeit of aqua vitae". In Scotland, the first evidence of whisky production comes from an entry in the Exchequer Rolls for 1494 where malt is sent "To Friar John Cor, by order of the king, to make aquavitae".


History:
The art of distillation began with the Babylonians in Mesopotamia (in what is now Iraq) from at least the 2nd millennium BC, with perfumes and aromatics being distilled long before potable spirits. Distillation was brought from Africa to Europe by the Moors, and its use spread through the monasteries, largely for medicinal purposes, such as the treatment ofcolicpalsy, and smallpox.
Between 1100 and 1300, distillation spread in Ireland and Scotland, with monastic distilleries existing in Ireland in the 12th century. Since the islands had few grapes with which to make wine, barley beer was used instead, resulting in the development of whisky. In 1494, as noted above, Scotland’s Exchequer granted the malt to Friar John Cor; this was enough malt to make about 1500 bottles, so the business was apparently thriving by that time.
King James IV of Scotland (r. 1488-1513) reportedly had a great liking for Scotch whisky, and in 1506 the town of Dundee purchased a large amount of Scotch from the Guild of Surgeon Barbers, which held the monopoly on production at the time. Between 1536 and 1541, King Henry VIII of England dissolved the monasteries, sending their monks out into the general public. Whisky production moved out of a monastic setting and into personal homes and farms as newly independent monks needed to find a way to earn money for themselves.
The distillation process at the time was still in its infancy; whisky itself was imbibed at a very young age, and as a result tasted very raw and brutal compared to today’s versions. Renaissance-era whisky was also very potent and not diluted, and could even be dangerous at times. Over time, and with the happy accident of someone daring to drink from a cask which had been forgotten for several years, whisky evolved into a much smoother drink.
In 1707, the Acts of Union merged England and Scotland, and thereafter taxes on it rose dramatically.
After the English Malt Tax of 1725, most of Scotland’s distillation was either shut down or forced underground. Scotch whisky was hidden under altars, in coffins, and in any available space to avoid the governmental Excisemen. Scottish distillers, operating out of homemade stills, took to distilling their whisky at night, where the darkness would hide the smoke rising from the stills. For this reason, the drink was known as moonshine. At one point, it was estimated that over half of Scotland’s whisky output was illegal.
In America, whisky was used as currency during the American Revolution. It also was a highly coveted sundry and when an additional excise tax was levied against it, the 1794 Whiskey Rebellion took place.
In 1823, the UK passed the Excise Act, legalizing the distillation (for a fee), and this put a practical end to the large-scale production of Scottish moonshine.
In 1826 Robert Stein invented an effective continuous still, and in 1831, Aeneas Coffey refined it to create the Coffey still, allowing for cheaper and more efficient distillation of whisky. In 1850, Andrew Usher began producing a blended whisky that mixed traditional pot still whisky with that from the new Coffey still. The new distillation method was scoffed at by some Irish distillers, who clung to their traditional pot stills. Many Irish contended that the new product was, in fact, not whisky at all.
By the 1880s, the French brandy industry was devastated by the phylloxera pest that ruined much of the grape crop; as a result, whisky became the primary liquor in many markets.
During the Prohibition era lasting from 1920 to 1933 in the United States, all alcohol sales were banned in the country. However, the federal government made an exemption for whisky that was prescribed by a doctor and sold through licensed pharmacies. During this time, theWalgreens pharmacy chain grew from 20 retail stores to almost 400.


Types:

Whisky or whisky-like products are produced in most grain-growing areas. They differ in base product, alcoholic content, and quality.
Malts and grains are combined in various ways
  • Vatted malt is blended from malt whiskies from different distilleries. If a whisky is labelled "pure malt" or just "malt" it is almost certain to be a vatted whisky. This is also sometimes labelled as "blended malt" whisky.
  • Single malt whisky is malt whisky from a single distillery. However, unless the whisky is described as "single-cask" it will contain whisky from many casks, and different years, so the blender can achieve a taste recognisable as typical of the distillery. In most cases, the name of a single malt will be that of the distillery (The GlenlivetBushmillsNikka), with an age statement and perhaps some indication of some special treatments such as maturation in a port wine cask.
  • Blended whiskies are typically made from a mixture of malt and grain whiskies — often along with neutral spiritscaramel and flavouring. A whisky simply described as Scotch, Irish, or Canadian Whiskey is most likely to be a blend. A blend is usually from many distilleries so that the blender can produce a flavour consistent with the brand, and the brand name (e.g., Chivas RegalCanadian Club) will usually not therefore contain the name of a distillery. Jameson Irish Whiskey is an example of an exception, as it comes from only one distillery. A mixture of malts (with no grain) from different distilleries (more usually called a vatted malt) may sometimes be referred to as a "blended malt", and a mixture of grain whiskies with no malts will sometimes carry the designation "blended grain".
  • Cask strength (also known as Barrel proof) whiskies are rare, and usually only the very best whiskies are bottled in this way. They are bottled from the cask undiluted or only lightly diluted. Rather than diluting, the distiller is inviting the drinker to dilute to the level of potency most palatable (often no dilution is necessary, such is the quality of single cask whiskies).
  • Single cask (also known as Single barrel) whiskies are usually bottled by specialist independent bottlers, such as Duncan TaylorGordon & MacPhail, and Kentucky Bourbon Distillers, amongst others. Each bottle of a single-barrel whisky is from an individual cask, and often the bottles are labeled with specific barrel and bottle numbers. The taste of such whiskies may substantially vary from cask to cask within a brand.
Whiskies do not mature in the bottle, only in the cask, so the "age" of a whisky is only the time between distillation and bottling. This reflects how much the cask has interacted with the whisky, changing its chemical makeup and taste. Whiskies that have been in bottle for many years may have a rarity value, but are not "older" and will not necessarily be "better" than a more recently made whisky matured in wood for a similar time. Beyond an age of a decade or two, additional aging in a barrel will also not necessarily make a whisky "better".
Most whiskies are sold at or near an alcoholic strength of 40% abv, which is the statutory minimum in some countries – although the strength can vary, and cask strength whisky may have as much as twice that alcohol percentage.
American Whisky:
American whiskey is distilled from a fermented mash of cereal grain. It must have the taste, aroma, and other characteristics commonly attributed to whiskey.
Some types of whiskey listed in the United States federal regulations include:
These types of whiskey must be distilled to not more than 80% alcohol by volume, and the addition of coloring, caramel and flavorings is not allowed. These types of whiskey must then be aged in charred new oak containers, except for corn whiskey. Corn whiskey does not have to be aged but, if it is aged, it must be in un-charred oak barrels or un-charred used barrels. The ageing for corn whiskey usually is brief, e.g., six months. These restrictions do not exist for some similarly-named products in some other countries, such as Canada.
If the aging for one of these types of whiskey reaches two years or beyond, the whiskey is then additionally designated as "straight" e.g., "straight rye whiskey". A whiskey that fulfills all these above requirements except that it is derived from less than 51% of any one specific type of grain can be called simply a "straight whiskey" without naming a grain.
There are also other some categories of whiskey that are recognized in the U.S. regulations, such as:
  • Blended whisky, which is a mixture which contains straight whisky or a blend of straight whiskies or in combination, whiskey or neutral spirits.
  • Light whisky, which is produced in the United States at more than 80% alcohol by volume and stored in used or uncharred new oak containers.
  • Spirit whisky, which is a mixture of neutral spirits and at least 5% of certain stricter categories of whisky.
American blended whiskeys combine straight whiskey with grain neutral spirits (GNS), flavourings and colourings. The percentage of GNS must be disclosed on the label and may be as much at 80% on a proof gallon basis. Blended whiskey has the same alcohol content as straight whiskey but typically has a milder flavour.
Another important labeling in the marketplace is Tennessee whiskey, of which Jack Daniel'sGeorge Dickel, and Benjamin Prichard's are the only brands currently bottled. In practice, it is essentially identical to bourbon whiskey. Tennessee whiskey is generally filtered through sugar maple charcoal, which is claimed to remove some unpleasant flavours and odours and produce a cleaner spirit. Tennessee whiskey does not actually have a legal definition in Federal regulations to mandate these characteristics, so there is no requirement for it to fulfill all of the requirements for bourbon or to be filtered in such a manner. However, the Government of the United States officially recognized Tennessee whiskey as a distinct style in 1941, and it has labeling recognition in some other countries, such as Canada and Mexico.

Australian Whisky
Australia produces a number of single malt whiskies. The whiskies being produced on the island State of Tasmania in particular are receiving global attention.
Australian whiskies are winning an increasing number of global whisky awards and medals, including for example the World Whiskies Awards and Jim Murray's Whisky Bible 'Liquid Gold Awards'.
Australian whisky distilleries, past and present, include:
  • Bakery Hill;
  • Booie Range Distillery - no longer operating;
  • Corio Whisky Distillery - no longer operating;
  • Great Southern Distilling Company (Limeburners Single Malt Whisky);
  • Hellyers Road;
  • Lark;
  • Mackey's (still in maturation, no whisky released yet);
  • Nant;
  • Old Hobart Distillery (still in maturation, no whisky released yet);
  • Railway Shed Timboon (John Christie's Single Malt);
  • Small Concern (no longer operating);
  • Samuel Smith & Son (Smith's Angaston Whisky) - no longer operating; and
  • Tasmania Distillery (Sullivans Cove Single Malt Whisky).

Canadian Whisky:
Canadian whiskies are usually lighter and smoother than other whisky styles. By Canadian law, Canadian whiskies must be produced and aged in Canada, be distilled from a fermented mash of cereal grain, be aged in wood barrels (of a capacity not larger than 700 L) for not less than three years, and "possess the aroma, taste and character generally attributed to Canadian whisky". The terms "Canadian Whisky" and "Canadian Rye Whisky" are legally indistinguishable in Canada and do not require any use of rye or other specific grain in their production. In fact, the predominant grain used in making "Canadian Rye Whiskey" is corn. Canadian whiskies may contain caramel and flavouring in addition to the distilled mash spirits, and there is no maximum limit on the alcohol level of the distillation, so the bulk of the distilled content (often more than 90 percent) may be neutral spirits rather than straight whiskies.

English whiskies

Whisky production in modern England re-started in Norfolk in late 2006, and the first resulting single malt whisky was made available to the public in November 2009. This was the first English single malt in over 100 years. It was produced at St George's Distillery by the English Whisky Company. Previously Bristol and Liverpool were centres of English whisky production.


Finnish whiskies

There are two working distilleries in Finland and a third one is under construction. Whisky retail sales in Finland are controlled solely by the state alcohol monopoly Alko and advertisement of strong alcoholic beverages is banned.


German whiskies

The distillation of German-made whisky is a relatively recent phenomenon having only started in the last 30 years. The styles produced resemble those made in Ireland, Scotland and the United States: single malts, blends, and bourbon styles. There is no standard spelling of German whiskies with distilleries using both "whisky" and "whiskey" and one even using "whessky", a play on the word whisky and Hessen, the state in which it is produced. There are currently 23 distilleries in Germany producing whisky.


Indian whiskies

Indian whisky is an alcoholic beverage that is labelled as "whisky" in India. The vast majority of Indian whisky is distilled from fermented molasses, and as such would be considered a sort of rum outside of the Indian subcontinent. In India, 90% of the "whisky" consumed is molasses based, although India has begun to distill whisky from malt and other grains.
Kasauli Distillery is set in the Himalaya mountains and opened in the late 1820s. The main whisky brand is a single malt named "Solan No. 1". This was named after the town nearby called Solan. It was the best selling Indian whisky till recently, but has declined since the early 1980s because of the stiff competition from the larger distilleries. Other whiskies this distillery produces are Diplomat Deluxe, Colonel's Special, Black Knight and Summer Hall.
Amrut Fusion single malt is distilled by Amrut Distilleries of Bangalore, and has been gaining popularity after winning some awards. In The Whisky Bible 2010, Whisky expert Jim Murray rated the whisky at 97 points and declared it the third best in the world. It is made from a combination of two barleys - Indian barley from from the Punjab and Scottish peated barley.


Irish whiskeys

Various Irish whiskeys
Most Irish whiskeys are distilled three times. Though traditionally distilled using pot stills, column still are now used to produce grain whiskey for blends. By law, Irish whiskey must be produced in Ireland and aged in wooden casks for a period of no less than three years, although in practice it is usually three or four times that period. Unpeated malt is almost always used, the main exception being Connemara Peated Malt whiskey.
There are several types of whiskey common to Ireland: single malt, single grain, blended whiskey and pure pot still whiskey. The designation "pure pot still" as used in Ireland generally refers to whiskey made of 100% barley, mixed malted and unmalted, and distilled in a pot still made of copper. The "green" unmalted barley gives the traditional pure pot still whiskey a spicy, uniquely Irish quality. Like single malt, pure pot still is sold as such or blended with grain whiskey. Usually no real distinction is made between whether a blended whiskey was made from single malt or pure pot still.


Japanese whiskies

The model for Japanese whiskies is the single malt Scotch, although there are also examples of Japanese blended whiskies. The base is a mash of malted barley, dried in kilns fired with a little peat (although considerably less than in Scotland), and distilled using the pot still method. For some time exports of Japanese whisky suffered from the belief in the West that whisky made in the Scotch style, but not produced in Scotland, was inferior, and until fairly recently, the market for Japanese whiskies was almost entirely domestic. In recent years, Japanese whiskies have won prestigious international awards and now enjoy a reputation as a quality product.


Scotch whiskies

Various Scotch whiskies
Scotch whiskies are generally distilled twice, though some are distilled a third time. In 2009 the Bruichladdich distillery released a quadruple-distilled whisky called X4 + 3. It was the first ever official whisky of its type. Scotch Whisky Regulations require anything bearing the label "Scotch" to be distilled in Scotland and matured for a minimum of three years in oak casks, among other, more specific criteria. An age statement on the bottle, in the form of a number, must reflect the age of the youngest Scotch whisky used to produce that product. A whisky with an age statement is known as guaranteed age whisky. Scotch whisky without an age statement may, by law, be as young as three years old.
The basic types of Scotch are malt and grain, which are combined to create blends. Many, though not all, Scotch whiskies use peat smoke to treat their malt, giving Scotch its distinctive smoky flavour. Scotch malt whiskies are divided into five main regions: HighlandLowlandIslay,Speyside and Campbeltown.


Swedish whiskies

Sweden has a young, but growing whisky industry.
The 
Mackmyra distillery, started selling its products in 2006.Spirit of Hven started distilling in 2008 with products expected on the market circa 2012. The Smögen distillery in Hunnebostrand on the Swedish west coast started distilling in August 2010, and the Box distillery near Härnösand in northern Sweden are expected to start distilling in the second half of 2010.
Additionally, another half dozen or so future Swedish distilleries are in different levels of preparation.


Welsh whiskies

(Welsh: Wysgi or Wisgi) In 2000, Penderyn Distillery started production of the Penderyn single malt Welsh whisky in Wales, the first Welsh whisky since all production ended in 1894. The first bottles went on sale on 1 March 2004, Saint David's Day, and the whisky is now sold throughout the world. Penderyn Distillery is situated in the Brecon Beacons National Park and is considered the smallest distillery in the world.


Other whiskies

In Brittany, France, five distilleries (Distillerie des Menhirs, Guillon, Glann ar Mor, Kaerilis and Warenghem) produce whisky using techniques similar to those in Scotland.
Manx Spirit from the Isle of Man is, like some Virginia whiskeys in the USA, distilled elsewhere and re-distilled in the country of its nominal "origin".
In the Netherlands there are two distilleries. From Zuidam distillers a single malt called (Millstone), and from the Us Heit Distillery the (Frysk Hynder) single malt.
Recently at least two distilleries in the traditionally brandy-producing Caucasus region announced their plans to enter the Russian domestic market with whiskies. The Stavropol-based Praskoveysky distillery bases its product on Irish technology, while in KizlyarDagestan's "Russian Whisky" announced a Scotch-inspired drink in single malt, blended and wheat varieties.
In Taiwan, the King Car company built a whisky distillery in the city of Yilan, and has recently begun marketing Kavalan Single Malt Whisky.

Names & Spelling:
Much is made of the word's two spellings: whisky and whiskey. There are basically two schools of thought on the issue. One is that the spelling difference is simply a matter of local language convention for the spelling of a word, indicating that the spelling will vary depending on the background or personal preferences of the writer (like the difference between colorand colour or tire and tyre or recognize and recognise), and the other is that the spelling should depend on the style or origin of the spirit that is being described. However, there is general agreement that when quoting the proper name printed on a label, the spelling that is used on the label should not be altered. Some writers will refer to "whisk(e)y" or "whisky/whiskey" to acknowledge the variation.
The spelling whisky (and plural whiskies) is generally used in Canada, Japan, Scotland, and Wales, while whiskey (and plural whiskeys) is more common in Ireland and the United States. However, the usage is not always consistent – for example, some prominent American brands, such as George DickelMaker's Mark, and Old Forester (which are all made by different companies), use the 'whisky' spelling on their labels, and the U.S. legal Standards of Identity for Distilled Spirits document also uses the 'whisky' spelling. American brands using the Scottish version of the spelling of “whisky” tend to have been founded by individuals with Scottish anestry or to have a flavor (or flavour) style or marketing strategy that is evocative of Scotch whisky.
"Scotch" is the internationally recognised (or recognized) term for "Scotch whisky". It is rarely used in Scotland, where the drink is called simply "whisky".

Chemistry:
Whiskies and other distilled beverages such as cognac and rum are complex beverages containing a vast range of flavouring compounds, of which some 200 to 300 can be easily detected by chemical analysis. The flavouring chemicals include "carbonyl compounds, alcohols, carboxylic acids and their esters, nitrogen- and sulfur-containing compounds, tanninsand other polyphenolic compounds, terpenes, and oxygen-containing heterocyclic compounds" and esters of fatty acids. The nitrogen compounds include pyridinespicolines andpyrazines.


Flavours from distillation

The flavouring of whisky is partially determined by the presence of congeners and fusel oils. Fusel oils are higher alcohols than ethanol, are mildly toxic, and have a strong, disagreeable smell and taste. An excess of fusel oils in whisky is considered a defect. A variety of methods are employed in the distillation process to remove unwanted fusel oils. Traditionally, American distillers focused on secondary filtration using charcoalgravelsand, or linen to remove undesired distillates. Canadian distillers have traditionally employed column stillswhich can be controlled to produce an almost pure (and less flavourful) ethanol known as neutral grain spirit or grain neutral spirit (GNS). Flavour is restored by blending the neutral grain spirits with flavouring whiskies.
Acetals are rapidly formed in distillates and a great many are found in distilled beverages, the most prominent being acetaldehyde diethyl acetal (1,1-diethoxyethane). Among whiskies the highest levels are associated with malt whisky. This acetal is a principal flavour compound in sherry, and contributes fruitiness to the aroma.
The diketone diacetyl (2,3-Butanedione) has a buttery aroma and is present in almost all distilled beverages. Whiskies and cognacs typically contain more of this than vodkas, but significantly less than rums or brandies.


Flavours from oak

Whisky that has been aged in oak barrels gets a number of components from the wood. One of these is cis-3-Methyl-4-octanolide, known as the "whisky lactone" or "quercus lactone", a compound with a strong coconut aroma.
Commercially charred oaks are rich in phenolic compounds. One study identified 40 different phenolic compounds. The coumarin scopoletin is present in whisky, with the highest level reported in Bourbon whiskey.


Flavours and colouring from additives

Depending on the local regulations, additional flavourings and colouring compounds may be added to the whisky. Canadian whisky may contain caramel and flavouring in addition to the distilled mash spirits. Scotch whisky may contain added (E150A) caramel, but no other additives. The addition of flavourings is not allowed in American "straight" whiskey, but is allowed in American blends.


Chill filtration

Whisky is often "chill filtered": chilled to precipitate out fatty acid esters and then filtered to remove them. Most whiskies are bottled this way, unless specified as unchillfiltered or non chill filtered. This is done primarily for cosmetic reasons. Unchillfiltered whisky will often turn cloudy when stored at cool temperatures or when cool water is added to them, and this is perfectly normal.


Type of Alcohol

GIN - a colorless alcoholic beverage made by distilling or redistilling rye or other grain spirits and adding juniper berries or aromatics such as anise, caraway seeds, or angelica root as flavoring.


VODKA - originally distilled from fermented wheat mash but now also made from a mash of rye, corn, or potatoes.


RUM - distilled from cane juice, or from the scummings of the boiled juice, or from treacle or molasses, or from the lees of former distillations. Also, sometimes used colloquially as a generic or a collective name for intoxicating liquor.


WHISKEY - distilled from grain, potatoes, etc., especially in Scotland, Ireland, and the United States. In the United States, whisky is generally distilled from maize, rye, or wheat, but in Scotland and Ireland it is often made from malted barley.


TEQUILA an alcoholic liquor distilled from the fermented juice of the Central American century plant Agave tequilana.


BRANDY - an alcoholic liquor distilled from wine or fermented fruit juice.


LIQUEURS (FLAVORED SPIRITS)
Liqueurs are flavored spirits prepared by infusing certain woods, fruits, or flowers, in either water or alcohol, and adding sugar, etc. Others are distilled from aromatic or flavoring agents.


WINES and CHAMPAGNE 
RED WINE - wine having a red color derived from skins of dark-colored grapes.
WHITE WINE - any wine of a clear, transparent color, bordering on white, as Madeira, sherry, Lisbon, etc.; -- distinguished from wines of a deep red color, as port and Burgundy.
ROSE WINE - pinkish table wine from red grapes whose skins were removed after fermentation began.
CHAMPAGNE - a sparkling white wine made from a blend of grapes, especially Chardonnay and pinot, produced in Champagne.
SPARKLING WINE - any of various effervescent wines, such as champagne, produced by a process involving fermentation in the bottle.
VERMOUTH - a sweet or dry fortified wine flavored with aromatic herbs and used chiefly in mixed drinks.




ALE
LAGER - a type of beer of German origin that contains a relatively small amount of hops and is aged from six weeks to six months to allow sedimentation.


CIDER


BEER

Sunday, February 20, 2011

W I N E ( S )

Wine is an alcoholic beverage, made of fermented fruit juice, usually from grapes.The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast consumes the sugars in the grapes and converts them into alcohol. Different varieties of grapes and strains of yeasts produce different types of wine.

Wines made from other fruits, such as apples and berries, are normally named after the fruit from which they are produced (for example, apple wine or elderberry wine) and are generically called fruit wine or country wine (not to be confused with the French term vin de pays). Others, such as barley wine and rice wine (i.e., sake), are made from starch-based materials and resemble beer and spirit more than wine, while ginger wine is fortified with brandy. In these cases, the term "wine" refers to the higher alcohol content rather than production process.The commercial use of the English word "wine" (and its equivalent in other languages) is protected by law in many jurisdictions.

Wine has a rich history dating back to around 8000 BC and is thought to have originated in areas now within the borders of Armenia, Georgia and Iran. Wine first appeared in Europe at about 4500 BC in the Balkans, and was very common in ancient Greece, Thrace and Rome. Wine has also played an important role in religion throughout history. The Greek god Dionysus and the Roman equivalent Bacchus represented wine, and the drink is also used in Christian Eucharist ceremonies and the Jewish Kiddush.

Etymology:
The English word "wine" comes from the Proto-Germanic "*winam," an early borrowing from the Latin vinum, "wine" or "(grape) vine," itself derived from the Proto-Indo-European stem *win-o-.

History:
Archaeological evidence suggests that the earliest known production of wine, made by fermenting grapes, took place in sites in Georgia and Armenia from as early as 8000-6000 BC. These locations are all within the natural area of the European grapevine Vitis vinifera. Pressing wine after the harvest; Tacuinum Sanitatis, 14th century.

The oldest known evidence of wine production in Europe is dated to 4500 BC and comes from archaeological sites in Greece. The same sites also contain the world's earliest evidence of crushed grapes.On January 11, 2011 in one of Armenia's Vayots Dzor province cave was found world’s oldest winery dating to approximately 6000 years ago.
Viticulture in India has a long history dating back to the time of the Indus Valley civilization when grapevines were believed to have been introduced from Persia sometime in the 5000 BC. The first known mentioning of grape-based wines was in the late 4th century BC writings of Chanakya who was the chief minister of Emperor Chandragupta Maurya. In his writings, Chanakya condemns the use of alcohol while chronicling the emperor and his court's frequent indulgence of a style of grape wine known as Madhu.
Archaeologists indicates a possibility that grapes were mixed with rice to produce mixed fermented beverages in China in the early years of the seventh millennium BC.

Grape Varities:
Wine is usually made from one or more varieties of the European species Vitis vinifera, such as Pinot Noir, Chardonnay, Cabernet Sauvignon, Gamay and Merlot. When one of these varieties is used as the predominant grape (usually defined by law as a minimum of 75% or 85%), the result is a varietal, as opposed to a blended, wine. Blended wines are not necessarily considered inferior to varietal wines; some of the world's most expensive wines, from regions like Bordeaux and the Rhone Valley, are blended from different grape varieties of the same vintage.

Wine can also be made from other species of grape or from hybrids, created by the genetic crossing of two species. Vitis labrusca (of which the Concord grape is a cultivar), Vitis aestivalis, Vitis rupestris, Vitis rotundifolia and Vitis riparia are native North American grapes usually grown to eat fresh or for grape juice, jam, or jelly, but sometimes made into wine.

Hybridization is different than grafting. Most of the world's vineyards are planted with European V. vinifera vines that have been grafted onto North American species rootstock. This is common practice because North American grape species are resistant to phylloxera, a root louse that eventually kills the vine. In the late 19th century, most of Europe's vineyards (only excluding some of the driest vineyards in Southern Europe) were devastated by the bug, leading to massive vine deaths and eventual replanting. Grafting is done in every wine-producing country of the world except for Argentina, the Canary Islands and Chile—the only countries not yet exposed to the insect.

In the context of wine production, terroir is a concept that encompasses the varieties of grapes used, elevation and shape of the vineyard, type and chemistry of soil, climate and seasonal conditions, and the local yeast cultures. The range of possibilities here can result in great differences between wines, influencing the fermentation, finishing, and aging processes as well. Many wineries use growing and production methods that preserve or accentuate the aroma and taste influences of their unique terroir. However, flavor differences are not desirable for producers of mass-market table wine or other cheaper wines, where consistency is more important. Such producers try to minimize differences in sources of grapes through production techniques such as micro-oxygenation, tannin filtration, cross-flow filtration, thin film evaporation, and spinning cones.

Acid in Wines:
The acids in wine are an important component in both winemaking and the finished product of wine. They are present in both grapes and wine, having direct influences on the color, balance and taste of the wine as well as the growth and vitality of yeasts during fermentation and protecting the wine from bacteria. Most wines having a pH between 2.9–3.9. Generally, the lower the pH, the higher the acidity in the wine. However, there is no direct connection between total acidity and pH (it is possible to find wines with a high pH for wine and high acidity). In wine tasting, the term “acidity” refers to the fresh, tart and sour attributes of the wine which is evaluated in relation to how well the acidity balances out the sweetness and bitter components of the wine such as tannins.

  1. Tartaric acid is, from a winemaking perspective, the most important in wine due to the prominent role it plays in maintaining the chemical stability of the wine and its color and finally in influencing the taste of the finished wine. In most plants, this organic acid is rare but it is found in significant concentrations in grape vines.
  2. Malic acid, along with tartaric acid, is one of the principal organic acids found in wine grapes. It is found in nearly every fruit and berry plant but its most often associated with green apples from which flavor it most readily projects in wine.
  3. Lactic Acid: A much milder acid than tartaric and malic, lactic acid is often associated with “milky” flavors in wine and is the primary acid of yogurt and sauerkraut. It is produced during winemaking by lactic acid bacteria (known as LAB) which includes three genera: Oenococcus, Pediococcus and Lactobacillus.
  4. Citric Acid: While very common in citrus fruits, such as limes, citric acid is found only in very minute quantities in wine grapes. It often has a concentration about 1/20 that of tartaric acid. The citric acid most commonly found in wine are commercially produced acid supplements derived from fermenting sucrose solutions.
  5. Acetic acid is a two-carbon fatty acid produced in wine during or after the fermentation period. It is the most volatile of the primary acids associated with wine and is responsible for the sour taste of vinegar. During fermentation, activity by yeast cells naturally produce a small amount of acetic acid. If the wine is exposed to oxygen, acetobacter bacteria will convert the ethanol alcohol into acetic acid.
  6. Ascorbic acid, also known as vitamin C, is found in young wine grapes prior to veraison but is rapidly lost throughout the ripening process. In winemaking it is used with sulfur dioxide as an anti-oxidant to prevent oxidation, often added during the bottling process for white wines.
  7. Butyric acid is a bacteria-induced wine fault that can cause a wine to smell of spoiled Camembert or rancid butter.
  8. Sorbic acid is a winemaking additive used often in sweet wines as a preservative against fungi, bacteria and yeast growth. Unlike sulfur dioxide, it does not hinder the growth of the lactic acid bacteria.
  9. Succinic acid is most commonly found in wine but can also be present in trace amounts in ripened grapes. While concentration varies amount grape varieties, it is usually found in higher levels with red wine grapes.

The acidity in wine is an important component in the quality and taste of the wine. It adds a sharpness to the flavors and is detected most readily by a prickling sensation on the sides of the tongue and a mouth watering after taste. Of particular importance is the balance of acidity versus the sweetness of the wine (the left over residual sugar) and the more bitter components of the wine (most notably tannins but also includes other phenolics). A wine with too much acidity will taste excessive sour and sharp. A wine with too little acidity will taste flabby, flat and with less defined flavors.


Classification:Regulations govern the classification and sale of wine in many regions of the world. European wines tend to be classified by region (e.g. Bordeaux, Rioja and Chianti), while non-European wines are most often classified by grape (e.g. Pinot Noir and Merlot). More and more, however, market recognition of particular regions is leading to their increased prominence on non-European wine labels. Examples of non-European recognized locales include Napa Valley in California, [[peth-dindori valley(wine)india], madhuca indica trible wine from peth |]Willamette Valley in Oregon, Columbia Valley in Washington, Barossa Valley and Hunter Valley in Australia, Central Valley in Chile, Vale dos Vinhedos in Brazil, Hawke's Bay and Marlborough in New Zealand, Okanagan Valley and Niagara Peninsula in Canada.

European Classification: France has various appellation systems based on the concept of terroir, with classifications ranging from Vin de Table ("table wine") at the bottom, through Vin de Pays and Appellation d'Origine Vin Délimité de Qualité Supérieure (AOVDQS) up to Appellation d'Origine Contrôlée (AOC) or similar, depending on the region. Portugal has something similar and, in fact, pioneered this technique in 1756 with a royal charter that created the "Demarcated Douro Region" and regulated wine production and trade.Germany did likewise in 2002, although their system has not yet achieved the authority of those of the other countries'. Spain, Greece and Italy have classifications based on a dual system of region of origin and product quality.

Beyond Europe: Wines from outside of the traditional wine growing regions of Europe tend to be classified by grape rather than by terroir or region of origin, although there have been non-official attempts to classify them by quality.

Vintages:A "vintage wine" is one made from grapes that were all or mostly grown in a particular year. Most countries allow a vintage wine to include a portion that is not from the labelled vintage. Variations in a wine's character from year to year can include subtle differences in color, palate, nose, body and development. High-quality wines can improve in flavor with age if properly stored.

In the United States, for a wine to be vintage dated and labeled with a country of origin or American Viticultural Area (AVA) (such as "Sonoma Valley"), it must contain at least 95% of its volume from grapes harvested in that year. If a wine is not labeled with a country of origin or AVA the percentage requirement is lowered to 85%.

Vintage wines are generally bottled in a single batch so that each bottle will have a similar taste. Climate can have a big impact on the character of a wine to the extent that different vintages from the same vineyard can vary dramatically in flavor and quality. Thus, vintage wines are produced to be individually characteristic of the vintage and to serve as the flagship wines of the producer. Superior vintages, from reputable producers and regions, will often fetch much higher prices than their average vintages. Some vintage wines, like Brunellos, are only made in better-than-average years.

Aging of Wine:

The aging of wine, and its ability to potentially improve in quality, distinguishes wine from most other consumable goods. While wine is perishable and capable of deteriorating, complex chemical reactions involving a wine's sugars, acids and phenolic compounds (such as tannins) can alter the aroma, color, mouthfeel and taste of the wine in a way that may be more pleasing to the taster. The ability of a wine to age is influenced by many factors including grape variety, vintage, viticultural practices, wine region and winemaking style. The condition that the wine is kept in after bottling can also influence how well a wine ages and may require significant time and financial investment.
What wine can age ?
Only a few wines have the ability to significantly improve with age. Only around the top 10% of all red wine and top 5% of all white wines can improve significantly enough with age to make drinking more enjoyable at 5 years of age than at 1 year of age. Only the top 1% of all wine has the ability to improve significantly after more than a decade. It is belief that more wine is consumed too old, rather than too young, and that the great majority of wines start to lose appeal and fruitiness after 6 months in the bottle.
Wine with Little or no aging potential: German QBAs, Asti and Moscato Spumante, Rosé and blush wines like White Zinfandel, Branded wines like Yellow Tail, Mouton Cadet, European table wine, American jug & box wine, Inexpensive varietals (with the possible exception of Cabernet Sauvignon), The majority of Vin de pays, All Nouveau wines, Vermouth, Basic Sherry, Ports etc.
Wines with some aging potential: Botrytized wines (5–25 yrs), Chardonnay (2–6 yrs), Riesling (2–30 yrs), Hungarian Furmint (3–25 yrs), Loire Valley Chenin blanc (4–30 yrs), Hunter Valley Semillon (6–15 yrs), Cabernet Sauvignon (4–20 yrs), Merlot (2–10 yrs), Nebbiolo (4–20 yrs), Pinot noir (2–8 yrs), Sangiovese (2–8 yrs), Syrah (4–16 yrs), Zinfandel (2–6 yrs), Classified Bordeaux (8–25 yrs), Grand Cru Burgundy (8–25 yrs), Aglianico from Taurasi (4–15 yrs), Baga from Bairrada (4–8 yrs), Hungarian Kadarka (3–7 yrs), Bulgarian Melnik (3–7 yrs), Croatian Plavac Mali (4–8 yrs), Russian Saperavi (3–10 yrs), Madiran Tannat (4–12 yrs), Spanish Tempranillo (2–8 yrs), Greek Xynomavro (4–10 yrs) etc.
             During the aging process, the perception of a wine's acidity may change even though the total measurable amount of acidity is more or less constant throughout a wine's life. This is due to the esterification of the acids, combining with alcohols in complex array to form esters. In addition to making a wine taste less acidic, these esters introduce a range of possible aromas. Eventually the wine may age to a point where other components of the wine (such as a tannins and fruit) are less noticeable themselves, which will then bring back a heightened perception of wine acidity. Other chemical processes that occur during aging include the hydrolysis of flavor precursors which detach themselves from glucose molecules and introduce new flavor notes in the older wine and Aldehydes become oxidized. The interaction of certain phenolics develop what is known as tertiary aromas which are different from the primary aromas that are derived from the grape and during fermentation. An aged Malmsey Madeira shows the color change that white wines goes through as they age.
As a wine starts to mature, its bouquet will become more developed and multi-layered. While a taster may be able to pick out a few fruit notes in a young wine, a more complex wine will have several distinct fruit, floral, earthy, mineral and oak derived notes. The lingering finish of a wine will lengthen. Eventually the wine will reach a point of maturity, when it is said to be at its "peak". This is the point when the wine has the maximum amount of complexity, most pleasing mouthfeel and softening of tannins and has not yet started to decay. When this point will occur is not yet predictable and can vary from bottle to bottle. If a wine is aged for too long, it will start to descend into decrepitude where the fruit tastes hollow and weak while the wine's acidity becomes dominant.
The natural esterification that takes place in wines and other alcoholic beverages during the aging process is an example of acid-catalysed esterification. Over time, the acidity of the acetic acid and tannins in an aging wine will catalytically protonate other organic acids (including acetic acid itself), encouraging ethanol to react as a nucleophile. As a result, ethyl acetate -- the ester of ethanol and acetic acid—is the most abundant ester in wines. Other combinations of organic alcohols (such as phenol-containing compounds) and organic acids lead to a variety of different esters in wines, contributing to their different flavours, smells and tastes. Of course, when compared to sulfuric acid conditions, the acid conditions in a wine are mild, so yield is low (often in tenths or hundredths of a percentage point by volume) and take years for ester to accumulate.
Factors And Infuence - Wine Aging:
The ratio of sugars, acids and phenolics to water is a key determination of how well a wine can age. The less water in the grapes prior to harvest, the more likely the resulting wine will have some aging potential. Grape variety, climate, vintage and viticultural practice come into play here. Grape varieties with thicker skins, from a dry growing season where little irrigation was used and yields were kept low will have less water and a higher ratio of sugar, acids and phenolics. The process of making Eisweins, where water is removed from the grape during pressing as frozen ice crystals, has a similar effect of decreasing the amount of water and increasing aging potential.
In winemaking, the duration of maceration or skin contact will influence how much phenolic compounds are leached from skins into the wine. Pigmented tannins, anthocyanins, colloids, tannin-polysaccharides and tannin-proteins not only influence a wine's resulting color but also act as preservatives. During fermentation adjustment to a wine's acid levels can be made with wines with lower pH having more aging potential. Exposure to oak either during fermentation or after during barrel aging will introduce more phenolic compounds to the wines. Prior to bottling, excessive fining or filtering of the wine could strip the wine of some phenolic solids and may lessen a wine's ability to age.
Storage conditions can influence a wine's aging ability: The storage condition of the bottled wine will influence a wine's aging. Vibrations and heat fluctuations can hasten a wine's deterioration and cause adverse effect on the wines. In general, a wine has a greater potential to develop complexity and more aromatic bouquet if it is allowed to age slowly in a relatively cool environment. The lower the temperature, the more slowly a wine develops. On average, the rate of chemical reactions in wine double with each 18 °F (8 °C) increase in temperature. Wine expert Karen MacNeil, recommends keeping wine intended for aging in a cool area with a constant temperature around 55°F (13°C). Wine can be stored at temperatures as high as 69°F (20°C) without long term negative effect. Professor Cornelius Ough of the University of California, Davis believes that wine could be exposed to temperatures as high as 120 °F (49 °C) for a few hours and not be damaged. However, most experts believe that extreme temperature fluctuations (such as repeated transferring a wine from a warm room to a cool refrigerator) would be detrimental to the wine. The ultra-violet rays of direct sunlight should also be avoided because of the free radicals that can develop in the wine and result in oxidation.
Wines packaged in large format bottles, such as magnums and 3 liter Jeroboams, seem to age more slowly than wines packaged in regular 750 ml bottles or half bottles. This may be because of the greater proportion of oxygen exposed to the wine during the bottle process. The advent of alternative wine closures to cork, such as screw caps and synthetic corks have opened up recent discussions on the aging potential of wines sealed with these alternative closures. Currently there are no conclusive results and the topic is the subject of ongoing research.
Bottle Sickness: One of the short-term aging needs of wine is a period where the wine is considered "sick" due to the trauma and volatility of the bottling experience. During bottling some oxygen is exposed to the wine, causing a domino effect of chemical reaction with various components of the wine. The time it takes for the wine to settle down and have the oxygen fully dissolve and integrate with the wine is considered its period of "bottle shock". During this time the wine could taste drastically different than it did prior to bottling or how it will taste after the wine has settled. While many modern bottling lines try to treat the wine as gently as possible and utilize inert gases to minimize the amount of oxygen exposure, all wine goes through some period of bottle shock. The length of this period will vary with each individual wine.
Dumb Phase: During the course of aging a wine may slip into a "dumb phase" where its aromas and flavors are very muted. In Bordeaux this phase is called the age ingrat or "difficult age" and is likened to a teenager going through adolescence. The cause or length of time that this "dumb phase" will last is not yet fully understood and seems to vary from bottle to bottle.

Wine Tasting:Wine tasting is the sensory examination and evaluation of wine. Wines are made up of chemical compounds similar or identical to those in fruits, vegetables, and spices. The sweetness of wine is determined by the amount of residual sugar in the wine after fermentation, relative to the acidity present in the wine. Dry wine, for example, has only a small amount of residual sugar.

Individual flavors may also be detected, due to the complex mix of organic molecules such as esters and terpenes that grape juice and wine can contain. Experienced tasters can distinguish between flavors characteristic of a specific grape and flavors that result from other factors in wine making. Typical intentional flavor elements in wine are those imparted by aging in oak casks; chocolate, vanilla, or coffee almost always come from the oak and not the grape itself.

Banana flavors (isoamyl acetate) are the product of yeast metabolism, as are spoilage aromas such as sweaty, barnyard, band-aid (4-ethylphenol and 4-ethylguaiacol), and rotten egg (hydrogen sulfide). Some varietals can also have a mineral flavor due to the presence of water-soluble salts (like limestone).

Wine aroma comes from volatile compounds in the wine that are released into the air. Vaporization of these compounds can be sped up by twirling the wine glass or serving the wine at room temperature. For red wines that are already highly aromatic, like Chinon and Beaujolais, many people prefer them chilled.

Collecting:Outstanding vintages from the best vineyards may sell for thousands of dollars per bottle, though the broader term fine wine covers bottles typically retailing at over about US$30–50. "Investment wines" are considered by some to be Veblen goods—that is, goods for which demand increases instead of decreases as its price rises. The most common wines purchased for investment include those from Bordeaux, Burgundy, cult wines from Europe and elsewhere, and Vintage port. Characteristics of highly collectible wines include:
  • A proven track record of holding well over time
  • A drinking window plateau (i.e., the period for maturity and approachability) that is many years long.
  • A consensus amongst experts as to the quality of the wines.
  • Rigorous production methods at every stage, including grape selection and appropriate barrel-aging

Uses:Wine is a popular and important beverage that accompanies and enhances a wide range of European and Mediterranean-style cuisines. Red, white, and sparkling wines are the most popular, and are known as light wines because they are only 10–14% alcohol-content by volume. Apéritif and dessert wines contain 14–20% alcohol, and are sometimes fortified to make them richer and sweeter.

Some wine labels suggest opening the bottle and letting the wine "breathe" for a couple of hours before serving, while others recommend drinking it immediately. Decanting—the act of pouring a wine into a special container just for breathing—is a controversial subject in wine. In addition to aeration, decanting with a filter allows one to remove bitter sediments that may have formed in the wine. Sediment is more common in older bottles but younger wines usually benefit more from aeration.

During aeration, the exposure of younger wines to air often "relaxes" the flavors and makes them taste smoother and better integrated in aroma, texture, and flavor. Older wines generally fade, or lose their character and flavor intensity, with extended aeration. Despite these general rules, breathing does not necessarily benefit all wines. Wine should be tasted as soon as it is opened to determine how long it should be aerated, if at all.

Religious Uses:
Ancient Religion: The use of wine in religious ceremonies is common to many cultures and regions. Libations often included wine, and the religious mysteries of Dionysus used wine as a sacramental entheogen to induce a mind-altering state.

Judaism: Wine is an integral part of Jewish laws and traditions. The Kiddush is a blessing recited over wine or grape juice to sanctify the Shabbat or a Jewish holiday. On Pesach (Passover) during the Seder, it is a Rabbinic obligation of men and women to drink four cups of wine. In the Tabernacle and in the Temple in Jerusalem, the libation of wine was part of the sacrificial service. The blessing over wine said before consuming the drink is: "Baruch atah Hashem (Adonai) Eloheinu melech ha-olam, boray p’ree hagafen"—"Praised be the Lord, our God, King of the universe, Creator of the fruit of vine."

Christianity: In Christianity, wine is used in a sacred rite called the Eucharist, which originates in the Gospel account of the Last Supper (Gospel of Luke 22:19) that describe Jesus sharing bread and wine with his disciples and commanding them to, "do this in remembrance of me." Beliefs about the nature of the Eucharist vary among denominations .

Packaging: Most wines are sold in glass bottles and are sealed using corks (50% of production comes from Portugal). An increasing number of wine producers have been using alternative closures such as screwcaps, or synthetic plastic "corks". In addition to being less expensive, alternative closures prevent cork taint, although they have been blamed for other problems such as excessive reduction.

Some wines are packaged in heavy plastic bags within cardboard boxes, and are called box wines, or cask wine. These wines are typically accessed via a tap on the side of the box. Box wine can stay acceptably fresh for up to a month after opening, while bottled wine oxidizes more rapidly and can degrade considerably in a few days.

Environmental considerations of wine packaging reveal benefits and drawbacks of both bottled and box wines. Glass used to make bottles has a decent environmental impact, as it is completely recyclable, whereas plastics as used in box wines are typically much less environmentally friendly. However, wine bottle manufacturers have been cited for Clean Air Act violations. A New York Times editorial suggested that box wine, being lighter in package weight, has a reduced carbon footprint from its distribution. Boxed wine plastics, even though possibly recyclable, can be more labor-intensive (and therefore expensive) to process than glass bottles. And, while a wine box is recyclable, its plastic wine bladder most likely is not.

Storage:
Wine cellars, or wine rooms if they are above-ground, are places designed specifically for the storage and aging of wine. In an active wine cellar, temperature and humidity are maintained by a climate control system. Passive wine cellars are not climate-controlled, and so must be carefully located. Wine is a natural, perishable food product; when exposed to heat, light, vibration or fluctuations in temperature and humidity, all types of wine, including red, white, sparkling, and fortified, can spoil. When properly stored, wines can maintain their quality and in some cases improve in aroma, flavor, and complexity as they age. Some wine experts contend that the optimal temperature for aging wine is 55 °F (13 °C), others 59 °F (15 °C). Wine refrigerators offer an alternative to wine cellars. Wine refrigerators are not ideal for aging, but rather serve to chill wine to the perfect temperature for drinking. These refrigerators keep the humidity low, usually under 50%, which is below the optimal humidity of 50% to 70%. Lower humidity levels can dry corks out over time, allowing oxygen to enter the bottle and reduce the wine's quality.

Wine (s) bottle stopper "CORK" [Cork Collecting hobby]Cork is an impermeable, buoyant material, a prime-subset of generic cork tissue that is harvested for commercial use primarily from Quercus suber (the Cork Oak), which is endemic to southwest Europe and northwest Africa. Cork is composed of suberin, a hydrophobic substance, and because of its impermeability, buoyancy, elasticity, and fire resistance, it is used in a variety of products, the most common of which is for wine stoppers. Portugal produces approximately 50% of cork harvested annually worldwide, with Corticeira Amorim being the leading company in the industry

Sources and Harvesting: There are about 2,200,000 hectares of cork forest worldwide; 32.4% in Portugal, and 22.2% in Spain. Annual production is about 300,000 tons; 52.5% from Portugal, 29.5% from Spain, 5.5% Italy. Once the trees are about 25 years old the cork is stripped from the trunks every ten years. The trees live for about 200 years. The first two harvests produce poorer quality cork.

Properties and uses: Cork's elasticity combined with its near-impermeability makes it suitable as a material for bottle stoppers, especially for wine bottles. Cork stoppers represent about 60% of all cork based production.Cork's low density makes it a suitable material for fishing floats and buoys, as well as handles for fishing rods (as an alternative to neoprene).Sheets of cork, often the by-product of more lucrative stopper production, are used to make bulletin boards, and when used as floor tiles and other building materials, because it is a good insulator, it can reduce the energy required for heating. Granules of cork can also be mixed into concrete. The composites made by mixing cork granules and cement have lower thermal conductivity, lower density and good energy absorption. Some of the property ranges of the composites are density (400–1500 kg/m³), compressive strength (1–26 MPa) and flexural strength (0.5–4.0 MPa).

Use of Wine Bottle Closure: As late as the mid-17th century, French vintners did not use cork stoppers, using oil-soaked rags stuffed into the necks of bottles instead. Wine corks can be made of either a single piece of cork, or composed of particles, as in champagne corks; corks made of granular particles are called "technical corks".
While screwtops are generally considered to offer a trichloroanisole (TCA) free seal they reduce the oxygen transfer rate to almost zero, which can lead to reductive qualities in the wine. TCA is one of the primary causes of cork taint in wine. However, in recent years major cork producers have developed methods that remove most TCA from natural wine corks. Natural cork stoppers are important because they allow oxygen to interact with wine for proper aging, and are best suited for bold red wines purchased with the intent to age.

Cork Other Uses:
  1. Cork is used in musical instruments, particularly woodwind instruments, where it is used to fasten together segments of the instrument, making the seams airtight. Conducting baton handles are also often made out of cork.
  2. Cork can be used as bricks for the outer walls of houses, as in Portugal's pavilion at Expo 2000.
  3. Cork is used as the core of both baseballs and cricket balls. Replacing the interior of a baseball bat with cork—a practice known as corking — was historically a method of cheating at baseball; the efficacy of the practice is now discredited.
  4. Cork is often used, in various forms, in spacecraft heat shields.
  5. Cork is also used inside footwear to improve climate control and comfort.
  6. Corks are also hung from hats to keep insects away. See cork hat.
  7. Cork has been used as a core material in sandwich composite construction.
  8. Cork can be used as the friction lining material of an automatic transmission clutch, as designed in certain mopeds.
Health Effect: Alcohol & Health: [ USDA Nutrient Database ]
Although excessive alcohol consumption has adverse health effects, epidemiological studies have consistently demonstrated that moderate consumption of alcohol and wine is statistically associated with a decrease in death due to cardiovascular events such as heart failure. The average moderate wine drinker is more likely to exercise more, to be more health conscious, and to be of a higher educational and socioeconomic class, evidence that the association between moderate wine drinking and health may be related to confounding factors. Heavy drinkers have an elevated risk, while moderate drinkers (at most two five-ounce servings of wine per day) have a lower risk than non-drinkers. Red wine contains more polyphenols than white wine, and these are thought to be particularly protective against cardiovascular disease.

To fully get the benefits of resveratrol in wines, it is recommended to sip slowly when drinking wines. Due to inactivation in the gut and liver, most of the resveratrol in imbibed red wine does not reach the blood circulation. However, when sipping slowly, absorption via the mucous membranes in the mouth can result in up to around 100 times the blood levels of resveratrol. A study of women in the United Kingdom, called The Million Women Study, concluded that moderate alcohol consumption can increase the risk of certain cancers, including breast, pharynx and liver cancer.

Sunday, February 13, 2011

BEER

BEER is the world's most widely consumed and probably the oldest of alcoholic beverages; it is the third most popular drink overall, after water and tea.
It is produced by the brewing and fermentation of starches, mainly derived from cereal grains—most commonly malted barley, although wheat, maize (corn), and rice are widely used. Most beer is flavoured with hops, which add bitterness and act as a natural preservative, though other flavourings such as herbs or fruit may occasionally be included.

The strength of beer is usually around 4% to 6% alcohol by volume (abv) though may range from less than 1% abv, to over 20% abv in rare cases. The current world record is held by BrewDog, a Scottish craft brewery who brewed End of History in 2010; a freeze-distilled beer coming in at 55% ABV. It is also one of the most expensive costing between £500 and £700 ($800 - $1000; US) each 12 oz bottle.

Top-fermented beers are most commonly produced with Saccharomyces cerevisiae which clumps and rises to the surface, typically between 15 and 24 °C (60 and 75 °F). At these temperatures, yeast produces significant amounts of esters and other secondary flavour and aroma products, and the result is often a beer with slightly "fruity" compounds resembling apple, pear, pineapple, banana, plum, or prune, among others.

As almost any substance containing carbohydrates, mainly sugars or starch, can naturally undergo fermentation, it is likely that beer-like beverages were independently invented among various cultures throughout the world. The invention of bread and beer has been argued to be responsible for humanity's ability to develop technology and build civilization.

Process:
The process of making beer is known as brewing. A dedicated building for the making of beer is called a brewery, though beer can be made in the home. The purpose of brewing is to convert the starch source into a sugary liquid called wort and to convert the wort into the alcoholic beverage known as beer in a fermentation process effected by yeast.

The first step, where the wort is prepared by mixing the starch source (normally malted barley) with hot water, is known as "mashing". Hot water (known as "liquor" in brewing terms) is mixed with crushed malt or malts (known as "grist") in a mash tun. The mashing process takes around 1 to 2 hours, during which the starches are converted to sugars, and then the sweet wort is drained off the grains. The grains are now washed in a process known as "sparging". This washing allows the brewer to gather as much of the fermentable liquid from the grains as possible. The process of filtering the spent grain from the wort and sparge water is called wort separation. The traditional process for wort separation is lautering, in which the grain bed itself serves as the filter medium. Some modern breweries prefer the use of filter frames which allow a more finely ground grist. Most modern breweries use a continuous sparge, collecting the original wort and the sparge water together. However, it is possible to collect a second or even third wash with the not quite spent grains as separate batches. Each run would produce a weaker wort and thus a weaker beer. This process is known as second (and third) runnings. Brewing with several runnings is called parti gyle brewing.

The sweet wort collected from sparging is put into a kettle, or "copper", (so called because these vessels were traditionally made from copper) and boiled, usually for about one hour. During boiling, water in the wort evaporates, but the sugars and other components of the wort remain; this allows more efficient use of the starch sources in the beer. Boiling also destroys any remaining enzymes left over from the mashing stage. Hops are added during boiling as a source of bitterness, flavour and aroma. Hops may be added at more than one point during the boil. The longer the hops are boiled, the more bitterness they contribute, but the less hop flavour and aroma remains in the beer.

After boiling, the hopped wort is now cooled, ready for the yeast. In some breweries, the hopped wort may pass through a hopback, which is a small vat filled with hops, to add aromatic hop flavouring and to act as a filter; but usually the hopped wort is simply cooled for the fermenter, where the yeast is added. During fermentation, the wort becomes beer in a process which requires a week to months depending on the type of yeast and strength of the beer. In addition to producing alcohol, fine particulate matter suspended in the wort settles during fermentation. Once fermentation is complete, the yeast also settles, leaving the beer clear.

 Fermentation is sometimes carried out in two stages, primary and secondary. Once most of the alcohol has been produced during primary fermentation, the beer is transferred to a new vessel and allowed a period of secondary fermentation[disambiguation needed]. Secondary fermentation is used when the beer requires long storage before packaging or greater clarity. When the beer has fermented, it is packaged either into casks for cask ale or kegs, aluminium cans, or bottles for other sorts of beer.

Ingredients:
The basic ingredients of beer are water; a starch source, such as malted barley, able to be fermented (converted into alcohol); a brewer's yeast to produce the fermentation; and a flavouring such as hops. A mixture of starch sources may be used, with a secondary starch source, such as maize (corn), rice or sugar, often being termed an adjunct, especially when used as a lower-cost substitute for malted barley. Less widely used starch sources include millet, sorghum and cassava root in Africa, potato in Brazil, and agave in Mexico, among others. The amount of each starch source in a beer recipe is collectively called the grain bill.
1. Water:
Beer is composed mostly of water. Regions have water with different mineral components; as a result, different regions were originally better suited to making certain types of beer, thus giving them a regional character. For example, Dublin has hard water well suited to making stout, such as Guinness; while Pilzen has soft water well suited to making pale lager, such as Pilsner Urquell. The waters of Burton in England contain gypsum, which benefits making pale ale to such a degree that brewers of pale ales will add gypsum to the local water in a process known as Burtonisation.
2. Starch Source:
The starch source in a beer provides the fermentable material and is a key determinant of the strength and flavour of the beer. The most common starch source used in beer is malted grain. Grain is malted by soaking it in water, allowing it to begin germination, and then drying the partially germinated grain in a kiln. Malting grain produces enzymes that convert starches in the grain into fermentable sugars. Different roasting times and temperatures are used to produce different colours of malt from the same grain. Darker malts will produce darker beers.Nearly all beer includes barley malt as the majority of the starch. This is because of its fibrous husk, which is not only important in the sparging stage of brewing (in which water is washed over the mashed barley grains to form the wort), but also as a rich source of amylase, a digestive enzyme which facilitates conversion of starch into sugars. Other malted and unmalted grains (including wheat, rice, oats, and rye, and less frequently, corn and sorghum) may be used. In recent years, a few brewers have produced gluten-free beer made with sorghum with no barley malt for those who cannot consume gluten-containing grains like wheat, barley, and rye.
3. Hops:
Flavouring beer is the sole major commercial use of hops. The flower of the hop vine is used as a flavouring and preservative agent in nearly all beer made today. The flowers themselves are often called "hops". Hops were used by monastery breweries, such as Corvey in Westphalia, Germany, from AD 822, though the date normally given for widespread cultivation of hops for use in beer is the thirteenth century. Before the thirteenth century, and until the sixteenth century, during which hops took over as the dominant flavouring, beer was flavoured with other plants; for instance, Glechoma hederacea. Combinations of various aromatic herbs, berries, and even ingredients like wormwood would be combined into a mixture known as gruit and used as hops are now used. Some beers today, such as Fraoch' by the Scottish Heather Ales company and Cervoise Lancelot by the French Brasserie-Lancelot company, use plants other than hops for flavouring. Hops contain several characteristics that brewers desire in beer. Hops contribute a bitterness that balances the sweetness of the malt; the bitterness of beers is measured on the International Bitterness Units scale. Hops contribute floral, citrus, and herbal aromas and flavours to beer. Hops have an antibiotic effect that favours the activity of brewer's yeast over less desirable microorganisms, and hops aids in "head retention", the length of time that a foamy head created by carbonation will last. The acidity of hops is a preservative. Yeast is the microorganism that is responsible for fermentation in beer. Yeast metabolises the sugars extracted from grains, which produces alcohol and carbon dioxide, and thereby turns wort into beer. In addition to fermenting the beer, yeast influences the character and flavour. The dominant types of yeast used to make beer are the top-fermenting Saccharomyces cerevisiae and bottom-fermenting Saccharomyces uvarum. Brettanomyces ferments lambics, and Torulaspora delbrueckii ferments Bavarian weissbier. Before the role of yeast in fermentation was understood, fermentation involved wild or airborne yeasts. A few styles such as lambics rely on this method today, but most modern fermentation adds pure yeast cultures.
4. Clarifying Agent:
Some brewers add one or more clarifying agents to beer, which typically precipitate (collect as a solid) out of the beer along with protein solids and are found only in trace amounts in the finished product. This process makes the beer appear bright and clean, rather than the cloudy appearance of ethnic and older styles of beer such as wheat beers.

Examples of clarifying agents include isinglass, obtained from swimbladders of fish; Irish moss, a seaweed; kappa carrageenan, from the seaweed Kappaphycus cottonii; Polyclar (artificial); and gelatin. If a beer is marked "suitable for Vegans", it was clarified either with seaweed or with artificial agents

Varieits:
Pale Ale: Pale ale is a beer which uses a top-fermenting yeast and predominantly pale malt. It is one of the world's major beer styles.
Stout: Stout and porter are dark beers made using roasted malts or roast barley, and typically brewed with slow fermenting yeast. There are a number of variations including Baltic porter, dry stout, and Imperial stout. The name Porter was first used in 1721 to describe a dark brown beer popular with the street and river porters of London.This same beer later also became known as stout, though the word stout had been used as early as 1677. The history and development of stout and porter are intertwined.
Mild: Mild ale has a predominantly malty palate. It is usually dark coloured with an abv of 3% to 3.6%, although there are lighter hued milds as well as stronger examples reaching 6% abv and higher.
Wheat: Wheat beer is brewed with a large proportion of wheat although it often also contains a significant proportion of malted barley. Wheat beers are usually top-fermented (in Germany they have to be by law). The flavour of wheat beers varies considerably, depending upon the specific style.
Lager: Lager is the English name for cool fermenting beers of Central European origin. Pale lagers are the most commonly consumed beers in the world. The name "lager" comes from the German "lagern" for "to store", as brewers around Bavaria stored beer in cool cellars and caves during the warm summer months. These brewers noticed that the beers continued to ferment, and to also clear of sediment, when stored in cool conditions.
Lager yeast is a cool bottom-fermenting yeast (Saccharomyces pastorianus) and typically undergoes primary fermentation at 7–12 °C (45–54 °F) (the fermentation phase), and then is given a long secondary fermentation at 0–4 °C (32–39 °F) (the lagering phase). During the secondary stage, the lager clears and mellows. The cooler conditions also inhibit the natural production of esters and other byproducts, resulting in a "cleaner"-tasting beer.
Modern methods of producing lager were pioneered by Gabriel Sedlmayr the Younger, who perfected dark brown lagers at the Spaten Brewery in Bavaria, and Anton Dreher, who began brewing a lager (now known as Vienna lager), probably of amber-red colour, in Vienna in 1840–1841. With improved modern yeast strains, most lager breweries use only short periods of cold storage, typically 1–3 weeks.
Lambic: Lambic, a beer of Belgium, is naturally fermented using wild yeasts, rather than cultivated. Many of these are not strains of brewer's yeast (Saccharomyces cerevisiae) and may have significant differences in aroma and sourness. Yeast varieties such as Brettanomyces bruxellensis and Brettanomyces lambicus are common in lambics. In addition, other organisms such as Lactobacillus bacteria produce acids which contribute to the sourness.
Measurements:
Beer is measured and assessed by bitterness, by strength and by colour. The perceived bitterness is measured by the International Bitterness Units scale (IBU), defined in co-operation between the American Society of Brewing Chemists and the European Brewery Convention. The international scale was a development of the European Bitterness Units scale, often abbreviated as EBU, and the bitterness values should be identical.
Color:
Beer colour is determined by the malt. The most common colour is a pale amber produced from using pale malts. Pale lager and pale ale are terms used for beers made from malt dried with coke. Coke was first used for roasting malt in 1642, but it was not until around 1703 that the term pale ale was used. In terms of sales volume, most of today's beer is based on the pale lager brewed in 1842 in the town of Pilsen in the present-day Czech Republic. The modern pale lager is light in colour with a noticeable carbonation (fizzy bubbles) and a typical alcohol by volume content of around 5%. The Pilsner Urquell, Bitburger, and Heineken brands of beer are typical examples of pale lager, as are the American brands Budweiser, Coors, and Miller.
Dark beers are usually brewed from a pale malt or lager malt base with a small proportion of darker malt added to achieve the desired shade. Other colourants—such as caramel—are also widely used to darken beers. Very dark beers, such as stout, use dark or patent malts that have been roasted longer. Some have roasted unmalted barley.
Strength:
Beer ranges from less than 3% alcohol by volume (abv) to around 14% abv, though this strength can be increased to around 20% by re-pitching with champagne yeast, and to 55% abv by the freeze-distilling process. The alcohol content of beer varies by local practice or beer style. The pale lagers that most consumers are familiar with fall in the range of 4–6%, with a typical abv of 5%. The customary strength of British ales is quite low, with many session beers being around 4% abv. Some beers, such as table beer are of such low alcohol content (1%–4%) that they are served instead of soft drinks in some schools.
The alcohol in beer comes primarily from the metabolism of sugars that are produced during fermentation. The quantity of fermentable sugars in the wort and the variety of yeast used to ferment the wort are the primary factors that determine the amount of alcohol in the final beer. Additional fermentable sugars are sometimes added to increase alcohol content, and enzymes are often added to the wort for certain styles of beer (primarily "light" beers) to convert more complex carbohydrates (starches) to fermentable sugars. Alcohol is a by-product of yeast metabolism and is toxic to the yeast; typical brewing yeast cannot survive at alcohol concentrations above 12% by volume. Low temperatures and too little fermentation time decreases the effectiveness of yeasts and consequently decreases the alcohol content.
Exceptionally Strong Beers:
The strength of beers has climbed during the later years of the 20th century. Vetter 33, a 10.5% abv (33 degrees Plato, hence Vetter "33") doppelbock, was listed in the 1994 Guinness Book of World Records as the strongest beer at that time, though Samichlaus, by the Swiss brewer Hürlimann, had also been listed by the Guinness Book of World Records as the strongest at 14% abv. Since then, some brewers have used champagne yeasts to increase the alcohol content of their beers. Samuel Adams reached 20% abv with Millennium, and then surpassed that amount to 25.6% abv with Utopias. The strongest beer brewed in Britain was Baz's Super Brew by Parish Brewery, a 23% abv beer.
The product claimed to be the strongest beer made is The End of History, a 55% Belgian ale, made by the Scottish brewery BrewDog in 2010, who also made Sink The Bismarck!, a 41% abv IPA, and Tactical Nuclear Penguin, a 32% abv Imperial Stout; these are made using the eisbock method of fractional freezing, in which a strong ale is partially frozen and the ice is repeatedly removed, until the desired strength is reached, a process that may class the product as spirits rather than beer. The German brewery Schorschbräu's Schorschbock, a 31% abv eisbock, and Hair of the Dog's Dave, a 29% abv barley wine made in 1994, used the same fractional freezing method. A 60% abv blend of beer with whiskey was jokingly claimed as the strongest beer by a Dutch brewery in July 2010.


Serving:
Draught:Draught beer from a pressurised keg is the most common method of dispensing in bars around the world. A metal keg is pressurised with carbon dioxide (CO2) gas which drives the beer to the dispensing tap or faucet. Some beers may be served with a nitrogen/carbon dioxide mixture. Nitrogen produces fine bubbles, resulting in a dense head and a creamy mouthfeel. Some types of beer can also be found in smaller, disposable kegs called beer balls.

Packaging: Most beers are cleared of yeast by filtering when packaged in bottles and cans. However, bottle conditioned beers retain some yeast—either by being unfiltered, or by being filtered and then reseeded with fresh yeast. It is usually recommended that the beer be poured slowly, leaving any yeast sediment at the bottom of the bottle. However, some drinkers prefer to pour in the yeast; this practice is customary with wheat beers. Typically, when serving a hefeweizen, 90% of the contents are poured, and the remainder is swirled to suspend the sediment before pouring it into the glass. Alternatively, the bottle may be inverted prior to opening. Glass bottles are always used for bottle conditioned beers.

Temperature:
The temperature of a beer has an influence on a drinker's experience; warmer temperatures reveal the range of flavours in a beer but cooler temperatures are more refreshing. Most drinkers prefer pale lager to be served chilled, a low- or medium-strength pale ale to be served cool, while a strong barley wine or imperial stout to be served at room temperature.
Beer writer Michael Jackson proposed a five-level scale for serving temperatures: well chilled (7 °C/45 °F) for "light" beers (pale lagers); chilled (8 °C/46 °F) for Berliner Weisse and other wheat beers; lightly chilled (9 °C/48 °F) for all dark lagers, altbier and German wheat beers; cellar temperature (13 °C/55 °F) for regular British ale, stout and most Belgian specialities; and room temperature (15.5 °C/59.9 °F) for strong dark ales (especially trappist beer) and barley wine.

Vessels:
Beer is consumed out of a variety of vessels, such as a glass, a beer stein, a mug, a pewter tankard, a beer bottle or a can. The shape of the glass from which beer is consumed can influence the perception of the beer and can define and accent the character of the style. Breweries offer branded glassware intended only for their own beers as a marketing promotion, as this increases sales.
The pouring process has an influence on a beer's presentation. The rate of flow from the tap or other serving vessel, tilt of the glass, and position of the pour (in the centre or down the side) into the glass all influence the end result, such as the size and longevity of the head, lacing (the pattern left by the head as it moves down the glass as the beer is drunk), and turbulence of the beer and its release of carbonation.

Health Effect:
The main active ingredient of beer is alcohol, and therefore, the health effects of alcohol apply to beer. The moderate consumption of alcohol, including beer, is associated with a decreased risk of cardiac disease, stroke and cognitive decline.
The long term health effects of continuous, heavy alcohol consumption can, however, include the risk of developing alcoholism and alcoholic liver disease.
Brewer's yeast is known to be a rich source of nutrients; therefore, as expected, beer can contain significant amounts of nutrients, including magnesium, selenium, potassium, phosphorus, biotin, and B vitamins. In fact, beer is sometimes referred to as "liquid bread". Some sources maintain that filtered beer loses much of its nutrition.
A 2005 Japanese study found that low alcohol beer may possess strong anti-cancer properties. Another study found nonalcoholic beer to mirror the cardiovascular benefits associated with moderate consumption of alcoholic beverages. However, much research suggests that the primary health benefit from alcoholic beverages comes from the alcohol they contain.

It is considered that overeating and lack of muscle tone is the main cause of a beer belly, rather than beer consumption. A recent study, however, found a link between binge drinking and a beer belly. But with most overconsumption, it is more a problem of improper exercise and overconsumption of carbohydrates than the product itself. Several diet books quote beer as having an undesirably high glycemic index of 110, the same as maltose; however, the maltose in beer undergoes metabolism by yeast during fermentation so that beer consists mostly of water, hop oils and only trace amounts of sugars, including maltose.