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Old 10-01-2012, 12:37 AM   #1
Feb 2011
Culpeper, Va
Posts: 411
Liked 21 Times on 18 Posts

Hey all,

How long until I shouldn't wash and reuse yeast from primary?

I usually keg my beers after 10-14 days and then wash and reuse. I have a batch if brown ale that has been in primary for 4 weeks now. I've never harvested from long primaries...

What do you think?

My Blog: Bros Beer

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Old 10-01-2012, 01:16 AM   #2
Jan 2012
Canton, ME
Posts: 558
Liked 30 Times on 27 Posts

4 weeks shouldn't be a problem, I've done it before. Can't tell you where the "line" is, but at 4 weeks you should be safe. Especially if you make a starter with the washed yeast, like you should anyway.
Originally Posted by petey_c View Post
"Lets say your local bar pours an American pint where 15% of the beer is missing due to headspace. Every 6.66 beers you drink you 'll have been missing 1 entire beer". 6.66 beers!. I wonder who's really responsible for the missing beers... I don't know, maybe Satan??!

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Old 10-01-2012, 01:25 AM   #3
Nov 2010
Philly, PA
Posts: 730
Liked 61 Times on 43 Posts

4 weeks is fine. I always do at least four week primaries, sometimes five. Never had a problem with harvested yeast.

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Old 10-01-2012, 02:06 AM   #4
msa8967's Avatar
May 2009
North Liberty, Iowa
Posts: 2,878
Liked 107 Times on 86 Posts

I reguarly use washed yeast from beers that spend 4-5 weeks in the primary. Never had a problem with the washed yeast.
Mick Arnett
North Liberty, Iowa
"Beer will change the world. I don't know how, but it will."

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