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A hotter rest results in a fuller-bodied, sweeter beer as α-amylase produces more non-fermentable sugars. 66 °C (151 °F) is a typical rest temperature for a pale ale or German pilsener, while Bohemian pilsener and mild ale are typically rested at 67–68 °C (153–154 °F).
A 16th-century brewery Brewing is the production of beer by steeping a starch source (commonly cereal grains, the most popular of which is barley) in water and fermenting the resulting sweet liquid with yeast. It may be done in a brewery by a commercial brewer, at home by a homebrewer, or communally. Brewing has taken place since around the 6th millennium BC, and archaeological evidence ...
It is possible to use lager yeast in a warm fermentation process, such as with American steam beer; while German Altbier and Kölsch are brewed with Saccharomyces cerevisiae top-fermenting yeast at a warm temperature, but with a cold-storage finishing stage, and classified as obergäriges lagerbier (top-fermented lager beer). [13] [14]
Many beer styles are classified as one of two main types, ales and lagers, though certain styles may not be easily sorted into either category.Beers classified as ales are typically made with yeasts that ferment at warmer temperatures, usually between 15.5 and 24 °C (60 and 75 °F), and form a layer of foam on the surface of the fermenting beer, thus they are called top-fermenting yeasts.
Pilsner Urquell, the world's first pale lager and ancestor of today's Pilsners. Pilsner (also pilsener or simply pils) is a type of pale lager.It takes its name from the Bohemian city of Plzeň (German: Pilsen), where the world's first pale lager (now known as Pilsner Urquell) was produced in 1842 by Pilsner Urquell Brewery.
Pilsner Urquell (German: [ˈpɪlznɐ ˈʔuːɐ̯ˌkvɛl]; Czech: Plzeňský prazdroj [ˈpl̩zɛɲskiː ˈprazdroj]) is a lager beer brewed at Asahi Breweries' Pilsner Urquell Brewery in Plzeň (German name: Pilsen), Czech Republic.
Modern ale is typically fermented at temperatures between 15 and 24 °C (59 and 75 °F). At temperatures above 24 °C (75 °F) the yeast can produce significant amounts of esters and other secondary flavor and aroma products, and the result is often a beer with slightly "fruity" compounds resembling those found in fruits, such as apple, pear ...
where OG is the original gravity, or the specific gravity before fermentation and FG is the final gravity or SG after fermentation. "Original Extract" (OE) is a synonym for original gravity. The OE is often referred to as the "size" of the beer and is, in Germany, often printed on the label as Stammwürze or sometimes just as a percent. In the ...