ArticleBIAB: Tips From the Pros Brew-in-a-bag (BIAB) continues to grow in popularity around the world. Learn from two brewers well versed in maximizing the BIAB experience.Already a member? Log InWritten by Dave GreenYou'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 Introduction to Parti-Gyle Brewing Without this technique, we wouldn’t have the strong and common ales of England, as well as the enkels, dubbels, and tripels of Belgium.