Brewing Master

Question:

Thank you for the input. I assumed the yeast would be ok but, wanted some more opinions. As a side note, I decided not to use this yeast to ferment a German Lager but, to brew a NBB(New Belgium Brewing) 1554 clone instead. Rumor has it they use a European lager yeast and ferment it at ale temps..then cold condition the finished beer. I have a close knockoff recipe I did about a year ago and used Budvar yeast at lager temps…everyone was impressed at it’s close proximity to NBB 1554. If any one is interested I will post my recipe. Thanks again brew dogs. Brewer Bob – Hide quoted text — Show quoted text – Greetings to the Collective Brewing Community. I brewed a California Common about two weeks ago and realized I did not have the California Common yeast I thought I possesed but, I did have some White Labs S. German Lager yeast with great characteristics for the C. Common..i.e. real malty…medium attenuation etc. so I went ahead and pitched this yeast and fermented at 65F with great results for the Steam Beer I created. My question to the collective is can I turn around and use this yeast to make a German Lager if I ferment in it’s appropriate temperature range (50-55F)? or has this yeast been subjected to too high a temperature and perhaps mutated(adapted) to the higher temps I had used it for? I think it will be fine.  I expect that WL propagates the yeast at warmer than the fermentation temps. Anyone know for sure? Cheers, Mike

Response:

I may get some argument, but I think that yeast should be FINE.  The kind of natural selection to which you refer does not happen in 12 or 24 hours (the elapsed time from when you pitched, until most of the yeast in your carboy existed).  You’ll be ok. D A N

– Hide quoted text — Show quoted text – Greetings to the Collective Brewing Community. I brewed a California Common about two weeks ago and realized I did not have the California Common yeast I thought I possesed but, I did have some White Labs S. German Lager yeast with great characteristics for the C. Common..i.e. real malty…medium attenuation etc. so I went ahead and pitched this yeast and fermented at 65F with great results for the Steam Beer I created. My question to the collective is can I turn around and use this yeast to make a German Lager if I ferment in it’s appropriate temperature range (50-55F)? or has this yeast been subjected to too high a temperature and perhaps mutated(adapted) to the higher temps I had used it for? Thank you for you input, time and bandwidth. Brewer Bob

Response:

Greetings to the Collective Brewing Community. I brewed a California Common about two weeks ago and realized I did not have the California Common yeast I thought I possesed but, I did have some White Labs S. German Lager yeast with great characteristics for the C. Common..i.e. real malty…medium attenuation etc. so I went ahead and pitched this yeast and fermented at 65F with great results for the Steam Beer I created. My question to the collective is can I turn around and use this yeast to make a German Lager if I ferment in it’s appropriate temperature range (50-55F)? or has this yeast been subjected to too high a temperature and perhaps mutated(adapted) to the higher temps I had used it for?

I think it will be fine.  I expect that WL propagates the yeast at warmer than the fermentation temps. Anyone know for sure? Cheers, Mike

Response:

Greetings to the Collective Brewing Community. I brewed a California Common about two weeks ago and realized I did not have the California Common yeast I thought I possesed but, I did have some White Labs S. German Lager yeast with great characteristics for the C. Common..i.e. real malty…medium attenuation etc. so I went ahead and pitched this yeast and fermented at 65F with great results for the Steam Beer I created. My question to the collective is can I turn around and use this yeast to make a German Lager if I ferment in it’s appropriate temperature range (50-55F)? or has this yeast been subjected to too high a temperature and perhaps mutated(adapted) to the higher temps I had used it for? Thank you for you input, time and bandwidth. Brewer Bob

Response: