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Draught beer, also speltdraft, is beer served from a cask or keg rather than from a bottle or can. [1] [2] [3] Draught beer served from a pressurised keg is also known as keg beer. [4] [5] [6]
Until Joseph Bramah patented the beer engine in 1785, beer was served directly from the barrel and carried to the customer. The Old English dragan ("carry; pull") developed into a series of related words including drag, draw, and draught. By the time Bramah's beer pumps became popular, the use of the term draught to refer to the acts of serving or drinking beer was well established and transferred easily to beer served via the hand pumps. In time, the word came to be restricted to only such beer. The usual spelling is now "draught" in the United Kingdom, Ireland, Australia, and New Zealand and more commonly "draft" in North America, although it can be spelt either way. Regardless of spelling, the word is pronounced /drɑːft/ or /dræft/ [7] depending on the region the speaker is from. [8]
Canned draught is beer served from a pressurised container featuring a widget. [9] Smooth flow (also known as cream flow, nitrokeg, or smooth) is the name brewers give to draught beers pressurised with a partial nitrogen gas blend.
In 1691, an article in the London Gazette mentioned John Lofting, who held a patent for a fire engine: "The said patentee has also projected a very useful engine for starting of beer, and other liquors which will draw from 20 to 30 barrels an hour, which are completely fixed with brass joints and screws at reasonable rates".
In the early 20th century, draught beer started to be served from pressurised containers. Artificial carbonation was introduced in the United Kingdom in 1936, with Watney's experimental pasteurised beer Red Barrel. Though this method of serving beer did not take hold in the UK until the late 1950s, it did become the favored method in the rest of Europe, where it is known by such terms as en pression. The carbonation method of serving beer subsequently spread to the rest of the world; by the early 1970s the term "draught beer" almost exclusively referred to beer served under pressure as opposed to the traditional cask or barrel beer.
In Britain, the Campaign for Real Ale (CAMRA) was founded in 1971 to protect traditional—unpressurised—beer and brewing methods. The group devised the term real ale to differentiate between beer served from the cask and beer served under pressure. The term real ale has since been expanded to include bottle-conditioned beer.
Keg beer is often filtered and/or pasteurised, both of which are processes that render the yeast inactive. [10] [11]
In brewing parlance, a keg is different from a cask. A cask has a tap hole near the edge of the top, and a spile hole on the side used for conditioning the unfiltered and unpasteurised beer. A keg has a single opening in the centre of the top to which a flow pipe is attached. Kegs are artificially pressurised after fermentation with carbon dioxide or a mixture of carbon dioxide and nitrogen gas or especially in Czech Republic solely compressed air.
Keg has become a term of contempt used by some, particularly in the UK, since the 1960s when pasteurised draught beers started replacing traditional cask beers.
Keg beer was replacing traditional cask ale in all parts of the UK, primarily because it requires less care to handle. Since 1971, CAMRA has conducted a consumer campaign on behalf of those who prefer traditional cask beer. CAMRA has lobbied the British Parliament to ensure support for cask ale and microbreweries have sprung up to serve those consumers who prefer traditional cask beer.
Pressurised CO2 in the keg's headspace maintains carbonation in the beer. The CO2 pressure varies depending on the amount of CO2 already in the beer and the keg storage temperature. Occasionally the CO2 gas is blended with nitrogen gas. CO2 / nitrogen blends are used to allow a higher operating pressure in complex dispensing systems.
Nitrogen is used under high pressure when dispensing dry stouts (such as Guinness) and other creamy beers because it displaces CO2 to (artificially) form a rich tight head and a less carbonated taste. This makes the beer feel smooth on the palate and gives a foamy appearance. Premixed bottled gas for creamy beers is usually 75% nitrogen and 25% CO2. [12] This premixed gas, which only works well with creamy beers, is often referred to as Guinness Gas, Beer Gas, or Aligal (an Air Liquide brand name). Using "Beer Gas" with other beer styles can cause the last 5% to 10% of the beer in each keg to taste very flat and lifeless. In the UK, the term keg beer would imply the beer is pasteurised, in contrast to unpasteurised cask ale. Some of the newer microbreweries may offer a nitro keg stout which is filtered but not pasteurised.
Cask beer should be stored and served at a cellar temperature of 12 °C (54 °F). Once a cask is opened, it should be consumed within three days. Keg beer is given additional cooling just prior to being served either by flash coolers or a remote cooler in the cellar. This chills the beer to temperatures between 3 and 8 °C (37 and 46 °F).
The words "draft" and "draught" have been used as marketing terms to describe canned or bottled beers, implying that they taste and appear like beers from a cask or keg. Commercial brewers use this as a marketing tool although it is incorrect to call any beer not drawn from a cask or keg "draught". Two examples are Miller Genuine Draft, a pale lager which is produced using a cold filtering system, and Guinness stout in patented "Draught-flow" cans and bottles. Guinness is an example of beers that use a nitrogen widget to create a smooth beer with a dense head. Guinness has recently replaced the widget system from their bottled "draught" beer with a coating of cellulose fibres on the inside of the bottle. Statements indicate a new development in bottling technology that enables the mixture of nitrogen and carbon dioxide to be present in the beer without using a widget, making it according to Guinness "more drinkable" from the bottle.
In East Asian countries, such as China and Japan, the term "draft beer" (Chinese : 生啤酒; Japanese : 生ビール) applied to canned or bottled beer indicates that the beer is not pasteurised (though it may be filtered), giving it a fresher taste but shorter shelf-life than conventional packaged beers.
Beer is an alcoholic drink produced by the brewing and fermentation of starches from cereal grains—most commonly malted barley, although wheat, maize (corn), rice, and oats are also used. The fermentation of the starch sugars in the wort produces ethanol and carbonation. Most beer is brewed with hops, which add bitterness and act as a preservative and stabilising agent. Other flavouring agents, such as gruit, herbs, or fruits, may also be used. In commercial brewing, natural carbonation is often replaced with forced carbonation.
Real ale is the name coined by the Campaign for Real Ale (CAMRA) for beer that is "brewed from traditional ingredients, matured by secondary fermentation in the container from which it is dispensed, and served without the use of extraneous carbon dioxide".
A beer tap is a valve, specifically a tap, for controlling the release of beer. While other kinds of tap may be called faucet, valve or spigot, the use of tap for beer is almost universal. The word was originally coined for the wooden valve in traditional barrels. Beer served from a tap is largely known as draught beer, though beer served from a cask is more commonly called cask ale, while beer from a keg may specifically be called keg beer. Beer taps can be also used to serve similar drinks like cider or long drinks.
Boddingtons Brewery was a regional brewery in Manchester, England, which owned pubs throughout the North West. Boddingtons was best known for Boddingtons Bitter (Boddies), a straw-golden, hoppy bitter which was one of the first beers to be packaged in cans containing a widget, giving it a creamy draught-style head.
A keg is a small cask.
Wadworth is a brewery company founded in 1875 in Devizes, Wiltshire, England, best known for their 6X beer brand.
Beer has been brewed in England for thousands of years. As a beer brewing country, it is known for top fermented cask beer which finishes maturing in the cellar of the pub rather than at the brewery and is served with only natural carbonation.
Kegerator, a portmanteau of the words keg and refrigerator, is a refrigerator that has been designed or altered to store and dispense kegs.
Bright beer is beer in which yeast is no longer in suspension. There are several methods used for clearing yeast from beer, from waiting for the yeast to drop of its own accord to filtering it.
A widget is a device placed in a container of beer to manage the characteristics of the beer's head. The original widget was patented in Ireland by Guinness. The "floating widget" is found in cans of beer as a hollow plastic sphere, approximately 3 centimetres (1.2 in) in diameter with two small holes and a seam. The "rocket widget" is found in bottles, 7 centimetres (2.8 in) in length with the small hole at the bottom.
Worthington Brewery, also known as Worthington & Co. and Worthington's, is a British brewer founded by William Worthington in Burton upon Trent in 1761. It is the second oldest continuously brewed British beer brand, after Whitbread. The best known Worthington beers are its Creamflow nitrokeg bitter and White Shield India Pale Ale.
London Pride is the flagship beer of Fuller's Brewery. It is sold both cask-conditioned and bottled. It has been brewed at the Griffin Brewery since 1958.
A beer engine is a device for pumping beer from a cask, usually located in a pub's cellar.
A cask breather is a type of demand valve used to serve draught beer. The cask breather enables the empty space created when beer is drawn from a beer cask to be filled with carbon dioxide from an external source. This prevents ambient air from being drawn into the cask, thus extending the life of the beer by preventing oxidation.
Caffrey's Irish Ale is an ale launched in 1994 by Bass Brewery and currently owned by Molson Coors.
Guinness is an Irish dry stout that originated in the brewery of Arthur Guinness at St. James's Gate, Dublin, Ireland, in 1759. It is now owned by the British-based multinational alcoholic beverage maker Diageo. It is one of the most successful alcohol brands worldwide, brewed in almost 50 countries, and available in over 120. Sales in 2011 amounted to 850,000,000 litres. In spite of declining consumption since 2001, it is the best-selling alcoholic drink in Ireland where Guinness & Co. Brewery makes almost €2 billion worth of beer annually.
Beer is often made from barley malt, water, hops and yeast and so is often suitable for vegans and vegetarians. Some beer brewers add finings to clarify the beer when racking into a barrel. Finings can include plant-derived products, like Irish moss, or animal-derived products, like isinglass and gelatin.
Fuller's ESB (Extra Special Bitter) is a beer brewed by Fuller's at the Griffin Brewery in Chiswick, London. It has twice been named World Champion Beer, and has won CAMRA's Champion Beer of Britain Award on three occasions.
Boddingtons Bitter is a straw-golden bitter beer originally produced by Boddington & Co at their Strangeways Brewery in Manchester. It is now owned by AB-InBev and produced at their brewery in Samlesbury, Lancashire.
Porter is a style of beer that was developed in London, England in the early 18th century. It is well-hopped and dark in appearance owing to the use of brown malt. The name is believed to have originated from its popularity with porters.
