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I am looking at the White Labs WLP076 (Old Sonoma Ale), and see that it is available May-June. My LHBS, which also happens to be a natl. mail order shop, does not have it available. I see some online shops that have it, but I am leery of its freshness. Are the Platinum Strains yeasts one-time special releases, or do they come out each year?

Sorry for such a rookie question, but I have not bought liquid yeast before, the web page for that yeast at White Labs is not working, and their web site is not really clear on this point.

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AIUI, they're generally "one-time" releases that might come back in the future if customer response was sufficiently good. For instance, Wyeast 3726 used to be a "Private Collection" offering, and is now part of their regular lineup; Denny's Favorite 50 (Wyeast 1450) the same. Wyeast vs. White Labs, but it's all the same game.

I would not recommend using liquid yeast produced in June, especially for your first liquid yeast experience.

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  • For clarity, by "liquid yeast produced in June", you mean "liquid yeast which is older than 4 months", I presume?
    – object88
    Nov 14 '13 at 17:36
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    Yes, viability is way low at that point; yeastcalc.com says 29%. You can get the cell count back up with enough starter wort/steps, but you're working against the odds.
    – jsled
    Nov 15 '13 at 13:12

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