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Old 02-25-2007, 03:53 PM   #1
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Default I froze my yeast

Here in Michigan its been about 10-20F outside. I have a fridge outside in my garage and when I pulled the yeast out I found the White labs vial had froze. I this yeast no good any more? I was going to make a starter from it.


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Old 02-25-2007, 04:08 PM   #2
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You most likely killed it- but I would go ahead and try it. Thaw it out and make a starter. Even if just a few survive, they'll propagate. Good luck!


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Old 02-25-2007, 04:47 PM   #3
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Yeah you have nothing to lose at this point.

I freeze my yeast all the time but I do it with
glycerin to keep the cell walls from bursting.
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Old 02-25-2007, 11:35 PM   #4
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My wyeast arrived frozen (package sat outside too long). I just made a starter for it to get the cell count up.. no problem!!!
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Old 02-25-2007, 11:37 PM   #5
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Thaw it VERY slowly, and the yeast will probably be all right, particularly if it didn't get very cold for very long. Like YC said, do a small starter and see. If it doesn't take off right away, you know not to use it.


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