Whitelabs yeast question

Discussion in 'General Brewing Discussions' started by MrBIP, Apr 4, 2013.

  1. MrBIP

    MrBIP Active Member

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    Sorry, usually can find such things on vendor website or with google searches....

    How does one identify the manufacture date on a white labs yeast vial? Serching all over whitelabs website and not finding it. All I see is best if used by (May 30 in this case) and there's a lot number.

    (I'm going to find some type of container and make a starter for the cream ale I intend to brew this weekend).

    Thanks.
     
  2. LarryBrewer

    LarryBrewer Active Member

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    I think the white labs 'best by' date is 4 months from the date of manufacture.

    Wyeast puts the manufacture date right on the package, so it is simple to tell how old it is.
     
  3. MrBIP

    MrBIP Active Member

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    Thanks,
    (I'm finding more reason to prefer the wyeast smack packs :shock: )
     
  4. TheZel66

    TheZel66 Member

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    You're correct Larry. 4 months from Best By date in the vial-in date.
     
  5. LarryBrewer

    LarryBrewer Active Member

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    Last time I was at the home brew store, I found the dates on the vials confusing. I had the fridge door open, looking for the freshest yeast they had... you know the drill... :cool:

    Why not put BOTH dates on the vial - born date, and best by date... That would make so much more sense to me.
     
  6. Foster82

    Foster82 New Member

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    Info on the vial says "best before date is 4 months after bottling"
     

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  7. MrBIP

    MrBIP Active Member

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    Well, there it is!
    So, my vial said use by 5/30, so that would make it manufactured/bottled 1/30. (that's a little disapointing, I've lost nearly half .. going to have to pay attention to who I buy yeast from!).

    I plug this into the calculator for my 1.047, 6 gallon batch, which then says I need 199 billion cells (0.75 "middle of the road" pro brewer)...
    My two liter starter, using Chris White-Shaking growth model ... I don't have a stir plate, so I'm just agitating the jug every time I walk by it, says I'll end up with 176B cells, so I'm short.... :(

    But, I'm still thinking it's better than not doing it ... I made this last night and I'm planning to brew tomorrow afternoon, so I don't really have time to step this again. ... seems to me I need to spend $45 and purchase a stirstarter.
     
  8. DanC

    DanC Active Member

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    Stir plates are too easy to make yourself. There are many instructional videos on Utube.
     
  9. LarryBrewer

    LarryBrewer Active Member

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    Well at least the pitch rate is close, so maybe just note the lower pitch rate in the brew log. At least you are making a starter. Imagine pitching the vial by itself without the starter... :cool:

    A stir plate is a nice upgrade, and yes you can either buy or build, lots of options.
     

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