ABSTRACT
There are raw materials (ingredients) that are essential in conventional brewing procedures for beer production (details in Chapters 4, 5, 7, 8, and 10). In many countries, their use is dictated by appropriate brewing production regulations such as the German Purity Law (Reinheitsgebot)—details later. These ingredients are: malted cereals, water, hops, and yeast. 1 There are materials, collectively called adjuncts that are employed for brewing but are not essential for beer production. However, with certain exceptions (details later), most countries employ adjuncts. 2 Adjuncts are unmalted cereals and sugars that are used as a replacement (usually in part) for malted barley (or other malted cereals such as wheat, sorghum, oats, etc.).
