ArticleThe Chemistry of Beer Flavor Beer is comprised of hundreds of different chemical compounds that contribute to the overall flavor and aroma perception of the beer. Different styles of beer have different flavor and aroma characteristics thatAlready a member? Log InWritten by Chris BibleYou'll Also Like Article MEMBERS ONLY The Role of pH in Brewing pH plays a role in every step of the brewing process — from the time you mash in, all the way through to the final beer that fills the glass. Take a closer look at pH throughout the brewing process. Article MEMBERS ONLY IBUs: Modern Beers with Old Formulas – Advanced Brewing While these approximations are reliable enough for classic hopping techniques and amounts, hopping has evolved to be more varied and aggressive.