Bright beer

Bright beer
The bright tanks of the Appalachian Brewing Company

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 ("dropping bright") to filtering it.

Contents

Dropping bright

When the concentration of fermentable sugars in the beer falls below a certain level, variable with the strain of yeast, the yeast cells will naturally flocculate and settle toward the bottom of the vessel in which the beer is stored; this act is known as dropping bright. The degree to which yeast flocculates is dependent on many factors, including the specific gravity of the beer, the gas pressure over the beer, the ambient temperature, and some biological properties particular to the yeast strain; some beers will never drop bright by themselves.

Some breweries make available rack bright beer, which is cask-conditioned beer that has been dropped bright at the brewery and then racked, transferred, to a new container for shipment. Rack bright beer generally costs slightly more than ordinary beer, all else being equal, but requires less preparation time and care at the point of serving; in particular, dropping bright requires that the beer be left undisturbed to settle, as jarring or shaking its container will re-suspend the yeast.

Any beer which has been dropped bright or fined will have a layer of yeast sediment at the bottom of its storage vessel.

Fining

Finings can be introduced during the production of beer in order to induce it to drop bright more readily. For British beers, the most common fining agent is isinglass, and most breweries producing Real Ale introduce isinglass into the shipment cask so that the beer will drop bright readily upon the cask's being breached; this process can take from several hours to two or three days and may require the addition of supplementary finings by the cellarman.

Filtration

In contrast to dropping bright, yeast may also be removed from beer through filtration. The process of filtering removes carbonation and means the beer requires force carbonation.[1] Mechanical filtering and even pasteurisation of bottled beer started at the end of the 19th century, though the first beer known to have been mechanically filtered and force carbonated as draught keg beer was Watneys Red Barrel in 1931.[2]

See also

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • bright beer — vartoti skirtas alus statusas Aprobuotas sritis alkoholis apibrėžtis Išpilstytas į prekinę tarą alus, kuriam įforminti atitikties dokumentai. atitikmenys: angl. bright beer vok. Fertigbier, n rus. готовое пиво ryšiai: palygink – alaus pusgaminis… …   Lithuanian dictionary (lietuvių žodynas)

  • bright beer — светлое пиво beer bod тело пива beer color цвет пива dark beer темное пиво mild beer мягкое пиво new beer молодое пиво …   English-Russian travelling dictionary

  • Beer in Australia — is mostly now lagerFact|date=September 2007. Although Australia was settled predominantly by the British, it was found that, before the availability of modern temperature control systems, the brewing, distribution and storage of British style ale …   Wikipedia

  • Beer — This article is about the alcoholic beverage. For other uses, see Beer (disambiguation). Schlenkerla Rauchbier straight from the cask …   Wikipedia

  • Filtered beer — A filtered, pasteurised beer Filtered beer has been deliberately cleaned of significant contact with yeast through filtration. The process of filtering removes carbonation so that the beer requires force carbonation.[1] Mechanical filtering and… …   Wikipedia

  • Grimbergen (beer) — Infobox Brewery name = Grimbergen caption = location = Grimbergen, Belgium owner = Alken Maes opened = 1128 production = active beers = brewbox beer|name=Grimbergen Blond|style=bright beer brewbox beer|name=Grimbergen Dubbel|style=Brown brewbox… …   Wikipedia

  • Kölsch (beer) — Kölsch is a local beer speciality, brewed in Cologne, Germany. It is a clear beer with a bright straw yellow hue, and it has a prominent, but not extreme, hoppiness. It is less bitter than the standard German lager beer, Pils. Furthermore, Kölsch …   Wikipedia

  • Spruce beer — is a beverage flavored with the buds, needles, or essence of spruce trees. Spruce has been a traditional flavoring ingredient throughout the upper latitudes of the Northern Hemisphere where it is found, often substituting for ingredients… …   Wikipedia

  • Schneider (beer) — Schneider is the brand of beer produced by the Compañia de Cervercerias Unidas Argentina (CCUA) or Company of United Beer Producers in Spanish. The CCUA is as of 2006, the 3rd largest producer of beer in Argentina. It controls around 16% of the… …   Wikipedia

  • Keystone (beer brand) — Keystone beer is a product of the Coors Brewing Company in Golden, Colorado. It was first introduced in Chico, California in September 1989. Keystone can be found in can, keg, and occasionally bottled form. It is known for being the preferred… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”