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Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Yeast Viability
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Old 04-23-2011, 11:32 AM   #1
ayoungrad
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Default Yeast Viability

I use dry yeast for most of my batches.

However, I do a starter when I use liquid yeast. And I use Mr. Malty.

But how do you determine the viability with White Labs yeast? It has a best used by date on the vial but no date of production. Do we assume that the best used by date is 6 months after production?

Thanks.

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Old 04-23-2011, 11:47 AM   #2
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I have read that the best before date is 4 months after production.

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Old 04-23-2011, 03:15 PM   #3
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Hover your mouse over the production date field. It tells you what Conehead said.

-a.

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Old 04-23-2011, 03:50 PM   #4
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Quote:
Originally Posted by ajf View Post
Hover your mouse over the production date field. It tells you what Conehead said.

-a.
I haven't been able to find this online. Which part of the site has a production date field? Do you enter the lot number in somewhere? I looked briefly for something like this but couldn't find anything.
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Old 04-23-2011, 06:51 PM   #5
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Quote:
Originally Posted by ayoungrad View Post
I haven't been able to find this online. Which part of the site has a production date field? Do you enter the lot number in somewhere? I looked briefly for something like this but couldn't find anything.
top right corner at the mr malty calculator
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Old 04-23-2011, 09:41 PM   #6
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Got it. Never noticed that before. Thanks guys.

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