yeast cake

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pattyman9

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I racked to secondary and left about a half inch of beer on top of the yeast. How long can the yeast survive?
 

Scooby_Brew

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At least a month-two if you keep it in a cold garage (but don't let it freeze) or put it in a fridge in a jar.
 

Calder

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I usually take as much beer off as possible, add back a quart of water, swirl to mix it up, and pour into a couple of sanitized quart mason jars (throw any extra away - don't need that much), and store in the fridge.

If you use within a month, just toss one of the quart jars into the wort. No starter required. I usually split the 2 quarts into 3 pint jars; and a pint is enough for a batch.

If you leave it longer, I would recommend making a starter (which will be very active) to check the yeast is fine. The only problem I have found with keeping it up to 6 months has been autolysis, but it does not affect the yeast ability to ferment - just make a starter and off it goes; all those dead yeast cells are nutrient for the live yeast.
 
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