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Yeast Preparation, Simplified

The quality of your beer hinges on the yeast and handling it properly—but it need not be difficult. From our Illustrated Guide to Homebrewing, here’s what you need to know about types of yeast and how to manage them so that your fermentation goes to plan.

Dave Carpenter Feb 18, 2023 - 12 min read

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O thou invisible spirit of wine, if thou hast no name to be known by, let us call thee devil!
— Cassio, William Shakespeare’s Othello


We humans have enjoyed alcoholic beverages for millennia, but our grasp of yeast’s role in fermentation goes back a mere 150 years. In that century and a half, though, scientists, brewers, and bakers have made enormous strides. While our understanding of fermentation remains incomplete, we know enough to reliably and repeatedly coax favorable results from yeast (Saccharomyces, at least).

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