As any all-grain brewer knows, a mash is a mixture of hot water and grain. A “sour mash” is a mash that has acid-producing bacteria in it. Most people associate the term
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Written by Chris Colby
Issue: September 2000
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Points Off? Defining gravity and why it matters
Homebrewers have been known to fret over their brewhouse efficiency numbers. Make sure you know the differences, the variables involved, and how to troubleshoot.
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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.