Author Topic: Rehydrated Yeast Shelf Life  (Read 885 times)

Offline davidgzach

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Rehydrated Yeast Shelf Life
« on: February 23, 2013, 03:00:49 PM »
How long do you think you can leave rehydrated yeast out before bad things happen?  I have to go out now for the night and have it in a measuring cup covered with a paper towel on my bar.

Dave
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Offline denny

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Re: Rehydrated Yeast Shelf Life
« Reply #1 on: February 23, 2013, 03:05:33 PM »
How long do you think you can leave rehydrated yeast out before bad things happen?  I have to go out now for the night and have it in a measuring cup covered with a paper towel on my bar.

Dave

IIRC, the instructions say 30 min.
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Offline mtnrockhopper

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Re: Rehydrated Yeast Shelf Life
« Reply #2 on: February 23, 2013, 03:11:02 PM »
I wouldn't leave it very long because there are no sugars in the water. Once activated, it will starve.
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Offline davidgzach

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Re: Rehydrated Yeast Shelf Life
« Reply #3 on: February 23, 2013, 03:27:02 PM »
How about 4-5 hours?  Or should I cut my losses?

Dave
Dave Zach

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Re: Rehydrated Yeast Shelf Life
« Reply #4 on: February 23, 2013, 08:46:37 PM »
I think you'll be fine. There are no nutrients in beer and we commonly store yeast under beer.

It's not ideal but sometimes life gets in the way of best practices.

Kai

Offline davidgzach

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Re: Rehydrated Yeast Shelf Life
« Reply #5 on: February 24, 2013, 11:14:39 AM »
I think you'll be fine. There are no nutrients in beer and we commonly store yeast under beer.

It's not ideal but sometimes life gets in the way of best practices.

Kai

Thanks Kai.  It ended up being a late night watching my buddies band and sipping Stone IPA's.  (Not bad BTW)  So I ended up pitching this morning.  At least the wort was crystal clear from sitting at 40F all night.  I'll report back on how it goes. 
Dave Zach

Offline davidgzach

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Re: Rehydrated Yeast Shelf Life
« Reply #6 on: February 25, 2013, 01:27:01 PM »
Well, the yeast sat in water at room temp for about 18 hours.  I pitched them on Sunday morning in to what was probably 50F wort.  I figure it took a day for the wort to warm to 63F under my bar and the beer is now happily bubbling away.  Seems to not have been an issue.

Dave
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Offline tschmidlin

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Re: Rehydrated Yeast Shelf Life
« Reply #7 on: February 25, 2013, 04:22:09 PM »
You can store yeast under water much longer than under beer.  It may lack nutrients, but it also lacks poisons.  Distilled is best if you plan to do this.  If you don't plan, than tap water is fine too :)
Tom Schmidlin