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draft:a serving of drink (usually alcoholic) drawn from a keg
drawn from 得到(提取)
keg:[ keg ]
draft beer = draught beer:
Draught beer (also known as draft beer or tap beer) has several related though slightly different understandings. The majority of references to draught beer are of filtered beer that has been served f...
Draught beer (also known as draft beer or tap beer) has several related though slightly different understandings. The majority of references to draught beer are of filtered beer that has been served from a pressurised container, such as a keg or a widget can. A narrower meaning is beer that is served from a keg (or tap), but not from a can, bottle or cask, is also used. A more traditional definition is beer that is served from a large container, which could be either a keg or a cask. The different understandings may at times overlap and cause confusion. Some traditionalists object to the more modern use of the word when applied to canned beer. The slight usage differences of the term is due to the history and development of beer dispensing.
Draught beer is usually unpasteurised in America. It is intended to be kept refrigerated between 2°C (35°F) and 4°C (40°F), and consumed quickly after being "tapped". Above 6°C (44°F), a beer may within two days turn sour and cloudy. Below 6°C (44°F), a keg of draft beer should last 20-30 days before it loses its fresh taste and aroma.
In the UK, the term keg beer would imply the beer is pasteurised, in contrast to unpasturised cask beer. Some of the newer microbreweries may offer a nitro keg stout which is filtered but not pasteurised, but the older established breweries do pasteurise.
One of Australia's most popular beers is Carlton Draught, which is available on tap as well as in both cans and bottles without widgets.
Different beers also require different equipment for dispensing. For a detailed listing of brands and their respective keg taps and couplers, please see the Beer Brand / Keg Taps Couplers Listing.