any one see a problem re-using W-34/70 from a Bo-Pils that was 1.058, to a German Pils that is going to only be around 1.050? I ask because a couple years ago I reused US-05 from a 1.066 IPA in a 1.045 brown ale… major off flavors etc occurred, AFAIK because of the yeast dropping in gravity so much… I am assuming a 1.058 to 1.050 drop is not such a big deal?
-red
i don’t think you will have much problem.
No problem. I don’t know where the idea that you always have to go up in gravity came from.
I think it is simply a practice to go up in gravity and may have gotten misconstrued as a rule?
Yeah, that’s what I’d guess.
i have never had a problem. i seem to recall reading that there is a concern of pissing off the yeast a bit if you go from a particularly big beer (1090ish) down. but i don’t know how valid that really is.
+1.
OK cool. I will brew on!
Old gravity doesn’t matter. Pitch the right amount for the new gravity (don’t over pitch).
I don’t think I’d reuse yeast from a 1.090 beer anyway. The ROT is not to reuse over 1.060. Being a yeast abuser, I push that ti the low 70s.
Going up in gravity is just convenient, not a rule. Every time you ferment a beer, you end up with more yeast than you started with, and since higher-gravity beers require more yeast …