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Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > freezing yeast
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Old 12-07-2011, 01:23 PM   #1
dowhatitdo
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Default freezing yeast

Is it possible to freeze yeast, after washing, so that it can be saved for a long period of time? I know most people say you can only store year for 2-3 weeks at most, but that's in the fridge.

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Old 12-07-2011, 02:00 PM   #2
beerloaf
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Yes it's usually done with glycerin which you can get at your LHBS to preserve the yeast cell walls from freezing and rupturing. Most people however will make a starter first and take some small amounts of that, that way they have a lot of fresh and healthy yeast and then pitch the rest when they brew. Look up the yeast slanting threads and stickies. They go into a lot of detail about the whole process.

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Old 12-07-2011, 02:39 PM   #3
samc
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2-3 weeks in the fridge is not true. If you are making a starter from washed yeast it will last a lot longer.

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