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- Nov 27, 2010
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Bought a smack pack of Wyeast North American Lager when it was around to have on hand. Only now getting around to using it (maybe). Purchased it in August 2011, but it's probably from April-June 2011, since that's when it was available as part of the Private Collection. 2L Starter shows no signs of fermentation... no visible yeast, no CO2, no smell (other than sweet wort). Should I bag it and just get a couple packs of W-34/70? Mr Malty says that the viability of something produced on those dates is only 10%.