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Old 11-05-2007, 04:45 PM   #1
mickey3
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Oct 2007
High Point, NC
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Is it smarter to buy liquid yeast only when you are ready to do a new brew, or could you actually stockpile the yeast and keep it in the fridge? How long does it stay active?



 
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Old 11-05-2007, 04:51 PM   #2
Beerrific
 
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White labs has a best by date on it. I believe that Wyeast does also. But, even if it is beyond its 'expiration' it can still be used. In either case you should make a starter and adjust the starter size depending on how old it is to pitch the proper amount of yeast.
http://www.mrmalty.com/calc/calc.html



 
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Old 11-05-2007, 04:56 PM   #3
homebrewer_99
 
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I've successfully used yeast that was expired 2 years.

I wash my yeast. I've used washed yeast that was over 2 years also.

I have a lot of yeast that I washed over a year ago that I still use.
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Old 11-05-2007, 04:57 PM   #4
mickey3
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How exactly do you wash yeast?

 
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Old 11-05-2007, 05:01 PM   #5
McKBrew
 
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Yeast Washing

http://www.homebrewtalk.com/showthre...=yeast+washing
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Old 11-05-2007, 05:09 PM   #6
ohiobrewtus
 
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I wash yeast as well. The oldest that I've used is 4 months, but this weekend I'll be using a strain that was originally purchased 9 months ago. I keep making starters off of the original, unused in a brew strain. I've used it probably at least a dozen times.
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Old 11-05-2007, 06:25 PM   #7
malkore
 
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I just started washing. So far, so good, and it really saves $$ not having to pay $8 per batch for liquid yeast.


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