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Old 01-05-2011, 11:15 PM   #1
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Default White Labs production date in future

I always use Mr. Malty's Pitching Rate Calculator before I brew to make an appropriate starter. The viability of White Labs vials are based on the date 4 months prior to the best buy date. I just got three vials with May 6 2011 best buy dates. That puts the production date at 1/6/2011. Today is 1/5/2011, do I still use 1/6/2011 as the production date?

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Old 01-06-2011, 12:05 AM   #2
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That's true unless they're bacteria or the sour mix which I think is 6 months.

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Old 01-06-2011, 12:18 AM   #3
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Yeah it's WLP007

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Old 01-06-2011, 01:21 AM   #4
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This has happened to me as well but it has never been off by more than a day. Best I can figure is they aim for a date that will get them close to when it should be on shelves in the homebrew shop. I mean, they are printing these labels ahead of time, maybe with a specific date to fill as a goal and the yeast might be ready early.

Also "4 months" is not exact. Is 4 months from today 5/5? Or is it 30x4 days. Or 4x4 weeks? Anyway, just use today as the date for the Mr Malty (or maybe like 3 days ago) will get you close enough.

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Old 01-06-2011, 01:37 AM   #5
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Yeah thats what I figured. I was just going use Jan 1st and make the starter based on that. Still, thats impressive getting the yeast with almost 100% viability.

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Old 01-06-2011, 02:58 AM   #6
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If you can use the Mr Malty calculator to enter a production date in the future, you're cleverer than I am. The calculator does not allow this.

-a.

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Old 01-10-2014, 03:24 AM   #7
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Just had this same issue. The vial on the shelf says 4/14/14. Which means it was manufactured 5 days from now....

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Old 01-10-2014, 03:52 AM   #8
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Quote:
Originally Posted by Yermom View Post
Just had this same issue. The vial on the shelf says 4/14/14. Which means it was manufactured 5 days from now....

What is 4 months before 4/14? Not 1/14. Your yeasties were born 12/14 last year..
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Old 01-10-2014, 03:56 AM   #9
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Sorry, I meant to say 5/14.

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