Alpha acid

Alpha acids are natural compounds found in hop cones, a key ingredient in brewing beer. When hops are boiled during beer-making, these acids undergo a chemical change that creates bitterness, balancing the sweetness of the malt. The percentage of alpha acids in hops indicates their potential bitterness strength; higher percentages mean more bitterness can be produced. Brewers select hops with specific alpha acid levels to achieve their desired flavor profile, balancing aroma and bitterness. In short, alpha acids are the primary source of bitterness in beer, shaping its taste and overall profile.