Article Brewing for Flavor: Hops Hops can give your beer a wealth of flavors and aromas, both good and bad. The trick is knowing how to control them. Written by Ashton Lewis You'll Also Like Article FREE Save Your Hops for Post-Boil Outside of bittering additions, adding hops during the boil is inefficient as many of the essential oils and positive attributes being sought are lost to heat. Instead, save those hops for whirlpooling or dry hopping. 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.