Author Topic: 5 month storage  (Read 492 times)

Offline TXFlyGuy

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5 month storage
« on: October 24, 2020, 04:47:53 pm »
Just an FYI...we recently brewed a Kolsch, using yeast that was harvested over 5 moths ago. Yes, I was a little concerned as we normally re-use the yeast much quicker than that.

Upon stealing a one ounce sample, and doing my "Sniff 'n Taste" test, it is doing great! And the beer will be very good indeed.

So no worries if your harvested yeast is in storage for a few months! It will be just fine.
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Offline EnkAMania

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Re: 5 month storage
« Reply #1 on: October 24, 2020, 07:36:16 pm »
I've done up to 6 months with no issues.
Some day we'll look back on this and it will all seem funny

Offline Saccharomyces

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Re: 5 month storage
« Reply #2 on: October 24, 2020, 10:30:13 pm »
I have done over a year with some cultures.

Offline RC

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Re: 5 month storage
« Reply #3 on: October 24, 2020, 10:32:52 pm »
The oldest harvested slurry I've used was one month old. It was for an American lager, which turned out great. So I'm coming around to the anti-conventional-wisdom that harvested yeast can stay healthy/viable for a lot longer than commonly believed.

Offline coolman26

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Re: 5 month storage
« Reply #4 on: October 29, 2020, 03:54:50 pm »
I usually brew Kolsch regularly. I haven’t brewed in awhile. I always use Giga021 and pulled my slurry out last week. I made a small starter to check it. It took 3 days to get going. It is going strong in the fermenter right now.  It was 14 mo old by the way.
Jeff B

Offline TXFlyGuy

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Re: 5 month storage
« Reply #5 on: October 30, 2020, 12:48:09 am »
I usually brew Kolsch regularly. I haven’t brewed in awhile. I always use Giga021 and pulled my slurry out last week. I made a small starter to check it. It took 3 days to get going. It is going strong in the fermenter right now.  It was 14 mo old by the way.

14 months...WOW! Our yeast is all very fresh, or maybe 3 months old now.
The 5 month old Wyeast Kolsch took about 3 days to get real active (no starter), but it is doing great and will produce another crowd pleasing beer.
Bluebonnet Brewoff 2021 Winner:
Munich Helles - 1st Place
Oktoberfest   - 1st Place
English Porter - 3rd Place