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ModlrMike
Joined: 05 Jul 2017 Posts: 6
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Link Posted: Fri Jul 07, 2017 5:50 pm Post subject: To wash or not to wash |
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So I have a primary with a cake of US-05 that I'm thinking of harvesting from. I'm in too minds about the utility of washing the yeast. Could I not just toss in a litre (quart) of sterile water and then jar the resulting slurry? I understand that I'm getting trub etc, but what's the risk? I'll probably use the yeast again in three months.
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11121 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
Working on: Nothing
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Link Posted: Fri Jul 07, 2017 8:31 pm Post subject: |
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I would agree with Kal. I would use new dry yeast on your next batch. It can be found online at a fair price from time to time.
_________________ Visit dp Brewing Company
Hangovers hurt....but good memories last forever!
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ModlrMike
Joined: 05 Jul 2017 Posts: 6
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Link Posted: Sat Jul 08, 2017 4:15 am Post subject: |
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Price is not really the issue... more the challenge.
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McGruber
Joined: 12 Aug 2014 Posts: 237 Location: Idaho
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Link Posted: Sat Jul 08, 2017 7:42 am Post subject: |
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I agree with Kal and dp. You should ideally use harvested yeast within a week, and it prefers to be in a sterile, sugary and very chilled solution. Yeast storage and propagation is a tricky, time consuming and fickle beast. If you store yeast (a living organism that requires sugar and consumes oxygen like you and I) in water for three months it will all be dead and/or infected by the time you use it. Go with the dry yeast. I personally don't think it's worth risking all the time and other costs of brewing for the challenge. That being said, do what you want and report back!
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KB
Joined: 06 Nov 2014 Posts: 334 Location: Virginia
Working on: Next brew
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Link Posted: Sat Jul 08, 2017 9:40 pm Post subject: Re: To wash or not to wash |
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ModlrMike wrote: | So I have a primary with a cake of US-05... |
Hmm... I've always heard to NOT repitch dry yeast. Only repitch liquid yeast. If I'm remembering correctly, dry yeast already has dead yeast cells and other "foreign" material. Use liquid yeast as it is pure.
Is this just marketing BS or valid?
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