Hi, just brewed my first professional lager and am getting pretty nervous. Pitched a "15 bbl" pitch of WLP833 into about 11 bbl of 16.4ºP beer at 10ºC. Raised temp to 11ºC after about 16 hours. 40 hours after pitching, no activity is noticable. The pH has dropped only from 5.01 to 4.99, and samples drawn from about 6 inches above the cone are crystal clear -- not much yeast in them.
What is a normal lag time for this yeast? White Labs' website says I may not see activity for up to 72 hours when cold pitching lager yeast, but that seems more aimed at under-pitching homebrewers, don't you think?
If this doesn't start up soon, I'm thinking of pushing some oxygen up through the bottom of the fermenter to give them some air to breathe and get them up in the beer. Is there anything else I can do?
What is a normal lag time for this yeast? White Labs' website says I may not see activity for up to 72 hours when cold pitching lager yeast, but that seems more aimed at under-pitching homebrewers, don't you think?
If this doesn't start up soon, I'm thinking of pushing some oxygen up through the bottom of the fermenter to give them some air to breathe and get them up in the beer. Is there anything else I can do?
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