Ask Mr. Wizard

Yeast Washing


Michael Miller - Poway, California asks,

I have always wondered about the desire of many brewers to yeast wash. It seems to me that if you are trying to save yeast that you should simply make more yeast starter than you need and save the excess starter for the next batch. This seems easier and more likely to maintain the integrity of the strain. What am I missing?

I too question the desire of many brewers to acid wash their yeast. But before diving into why yeast washing is used I want to touch on another topic raised in your
Response by Ashton Lewis.