I have some liquid mead yeast that has expired a couple years ago, according to the date on it. It has always been kept in the refrigerator. Could it be revived and used or do I need to buy some new yeast?

  • 1
    It would certainly be easier/faster to just buy new yeast.
    – jscott
    Nov 8, 2010 at 21:19

2 Answers 2


A couple years is a LONG time :) I would make a starter with the yeast, if the starter takes off then you're all set. If it doesn't get going, get some new yeast.

These are some good instructions for making a starter



I haven't brewed mead, but having brewed regularly for a couple of years I would suggest not using it. Liquid yeast (for beer) costs about $10 where I am, and I wouldn't risk wrecking a batch because of some old yeast.

  • 2
    +1 For starting fresh. New yeast is an insignificant cost compared to the investment of money and time for an entire batch.
    – jscott
    Nov 8, 2010 at 21:20

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