Ask Mr. Wizard

Dry Yeast Advancements


Byron Hovey — Carolina Beach, North Carolina asks,

I read the article in the May-June 2023 issue of BYO on advancements for dry yeast with much interest, but I’m still not sure if rehydrating is necessary. What is your take on it? In his book on yeast, Chris White explains why it is necessary, and how to do it. He states that pitching yeast without rehydrating reduces yeast cell viability. It seems that when I rehydrate the lag time before fermentation starts is shorter and fermentation time is shorter, which would agree with higher cell count.

This is a great example of an advancement in the brewing world that has a real effect on the way home and commercial brewers go about brewing. When I was a young
Response by Ashton Lewis.