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Old 08-27-2012, 08:36 PM   #1
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Default Washing Yeast from a Big Beer

Is it worth washing and saving the yeast from brew that went from 1.107 to 1.020? Is it too pooped out and tired? I would more than likely not be using it on another big beer.

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Old 08-27-2012, 08:39 PM   #2
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Salute it for doing such a great job as it heads down the drain. That yeast has been through hell, I wouldn't re-pitch it.

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Old 08-27-2012, 08:46 PM   #3
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Unless you pitched a proper sized starter for the first brew, I wouldn't put them through that hell again. They've been stressed from the first run. While they probably gave you a great batch this time, I wouldn't count on them doing it again for another batch.

Read up about harvesting/washing yeast and how it should be used. Then you'll be able to make a more informed decision for the next time.

BTW, I've washed yeast before. Most of those batches fermented without issue. I messed up on one harvest and didn't do it right. So, I had to purchase a packet of yeast. Since then, the little it cost for yeast (even liquid) wasn't an issue, so I just bought fresh packets as needed (or several at a time, to make shipping per better, and keep them on hand).

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Old 08-28-2012, 08:03 AM   #4
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I am of the opposing view. Yeast that have survived such have the biological makeup to digest all of those sugars AND do so in a high ABV environment. I say keep them to make either a very dry beer or another large beer.

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Old 08-28-2012, 02:43 PM   #5
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Quote:
Originally Posted by cockybitz
I am of the opposing view. Yeast that have survived such have the biological makeup to digest all of those sugars AND do so in a high ABV environment. I say keep them to make either a very dry beer or another large beer.
Yes. But they will have war stories. In the form of mutations.
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Old 08-28-2012, 02:53 PM   #6
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Quote:
Originally Posted by AmandaK View Post
Yes. But they will have war stories. In the form of mutations.
Mutations don't happen that fast. It takes several generations before they come about and make any kind of impact.

More likely, the yeast will be stressed (PTSD) from the high OG batch. They could go completely nuts with the next batch, but I wouldn't leave them alone in a wort (suicide watch?)...
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Old 08-28-2012, 04:18 PM   #7
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Quote:
Originally Posted by Golddiggie View Post
Mutations don't happen that fast. It takes several generations before they come about and make any kind of impact.
This is incorrect, at least according to Chris White in Yeast.
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Old 08-28-2012, 04:22 PM   #8
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Quote:
Originally Posted by ReverseApacheMaster View Post
This is incorrect, at least according to Chris White in Yeast.
On what page???
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Old 08-28-2012, 04:42 PM   #9
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Little to be gained by trying to use them again IMO. Right now I have third gen S-189 and second gen 2206 fermenting a split batch doppelbock. The slurry will be going down the drain with my thanks in a few weeks.

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Old 08-28-2012, 04:58 PM   #10
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Yeast questions are always interesting because there is so much personal opinion mixed in with fact that it is often tough to tell what is really the case when you are first learning. I don't specifically recall that from White's book but I did more of a skimming on what I found interesting than a thorough reading so I'd be interested on a page number as well. Most people say don't do it so I don't do it. I may have the "biological makeup" to run a marathon but that doesn't mean I won't struggle through a three mile run if I try it right afterwards. May be a poor analogy but it kind of works.

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