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Old 01-02-2013, 07:18 PM   #1
Oct 2011
Danville, Illinois
Posts: 56

I have successfully harvested yeast from the primary after racking to secondary but, when I was racking to bottling bucket I noticed a significant layer of yeast in the bottom of the secondary. My question is can this harvested yeast be used or will it be exhausted and insufficient to brew another batch?

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Old 01-02-2013, 08:09 PM   #2
Sep 2011
Milwaukee, WI
Posts: 535
Liked 87 Times on 51 Posts

I've successfully brewed with harvested yeast from secondary. It took a three step starter to get the proper pitching rate though. Now I just wash the yeast from primary. In short, the answer is yes you can. I have also read that the yeast isn't as viable coming from the secondary compared to the primary.

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Old 01-02-2013, 08:40 PM   #3
Oct 2012
Knoxville, TN
Posts: 1,248
Liked 262 Times on 166 Posts

2 reasons why I normally harvest from primary rather than secondary. First, I was told the cells that have dropped in the secondary are less flocculant, and second, I normally throw a ton of dry hops into the secondary.
I moved into a new house in May and feel like I haven't brewed in about 15 years.

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Old 01-03-2013, 03:43 PM   #4
Mar 2010
Evanston Wyoming
Posts: 721
Liked 13 Times on 13 Posts

You can use the secondary trub but it will not be a viable to begin with and of course there isn't as much. I would suggest that you use the primary yeast unless you are in a bad scrape, and in that situation you could use it but I woud plan on a 2 or three step starter especially if it sits any length of time.

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