The common name of the plant used to make beer is barley. This cereal grain is malted and brewed to produce beer, providing the sugars necessary for fermentation by yeast. Barley is favored for its enzyme content, which helps convert starches into fermentable sugars during the brewing process. Various types of barley, such as two-row and six-row, are utilized in different beer styles, contributing to the flavor, mouthfeel, and aroma of the final product.