ArticleLautering Efficiency All-grain brewers are always talking about brewing efficiency — how much wort they yield from their mash into the boil kettle. There are two components to brewing efficiency: mashing efficiency and lauteringAlready a member? Log InWritten by John PalmerYou'll Also Like Article MEMBERS ONLY BIAB: 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. 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.