Beer | Definition, History, Types, Brewing Process, & Facts | Britannica
2024年12月12日 · Beer is an alcoholic beverage produced by extracting raw materials with water, boiling (usually with hops), and fermenting. In some countries beer is defined by law—as in Germany. Brewing in the 21st century is a large-scale industry. Learn about the history, types, and brewing process of beer.
Behind the scenes: How Samuel Adams beer is made
Learn about the chemistry of beer and the process of brewing from a brewmaster of the Samuel Adams Brewery, Boston, Massachusetts.
beer and brewing - Students | Britannica Kids | Homework Help
One of the most popular drinks in the world, beer is an alcoholic beverage made from grain by a brewing method that involves fermentation, a chemical process that converts starch to alcohol. Alcoholic beverages differ in the way they are made and in the amount of alcohol they contain.
What are the steps in making beer? | Britannica
The beer brewing process involves malting, milling, mashing, extract separation, hop addition and boiling, removal of hops and precipitates, cooling and aeration, fermentation, separation of yeast from young beer, aging, and maturing.
Beer - Brewing, Mashing, Fermentation | Britannica
2024年12月12日 · The simplest process, infusion mashing, uses a well-modified malt, two to three volumes of water per volume of grist, a single vessel (called a mash tun), and a single temperature in the range of 62 to 67 °C (144 to 153 °F).
Beer - Ales, Lagers, Stouts | Britannica
2024年12月12日 · Early British beers were made from successive extracts of a single batch of brown malt in a top-fermentation process. The first and strongest extract gave the best-quality beer, called strong beer, and a third extract yielded the poorest-quality beer, called small beer.
Beer - Yeast, Fermentation, Brewing | Britannica
2024年12月12日 · Brewing is unique among the beverage fermentation industries in that yeast from one fermentation is used to pitch the next. This means that hygienic conditions and rigorous quality control are necessary.
Craft beer | Definition, History, Grains, & Facts | Britannica
Refinements to the brewing process about the 14th and 15th centuries popularized the use of hops, which could be grown in many climates. Hops eventually became the preferred brewing ingredient, in part because the antimicrobial properties …
Beer - Germination, Brewing, Hops | Britannica
2024年12月12日 · Beer - Germination, Brewing, Hops: Activated by water and oxygen, the root embryo of the barleycorn secretes a plant hormone called gibberellic acid, which initiates the synthesis of α-amylase. The α- and β-amylases then convert the starch molecules of the corn into sugars that the embryo can use as food.
Coffee - Brewing, Roasting, Varieties | Britannica
2024年12月13日 · Coffee - Brewing, Roasting, Varieties: There are both hot and cold methods of extracting flavour and aroma from ground coffee, and the caffeine content varies with the variety of bean and method of brewing.