Didn't think it could happen to me.....

[Conan]

Hi all. Had my first stuck fermentation today. How many batches have I brewed, 50? Made a Moose Drool clone on July 18th. I checked it today and it's at 1.034. It's the first beer I put in my new fermentation chamber (that holds 6 buckets, minimum!). I needed to force chill two batches from 100 to pitching temp on the 25th, which means the chamber was 40F for a few hours. Do you think this cold crashed the yeast? I stirred the stout today, hoping to get it going again. The chamber has been at 66 since the 25th, but was turned up to 68 tonight. SG was 1.091 using a 900months starter of WYeast 1335. My plan is to give it until Sunday night, then pitch some S-05. Mash was at 156, and prior versions finished at 1.015. Thoughts? Kyle

 

[marc06]

First, if the yeast starter is 900 months old, you may not reach full attenuation. I would pull the carboy out of the fermentation chamber and let it warm up. Since you have attenuated approximately 2/3 of the way through, risk of off flavors are minimal. The warmer temperatures should spur further yeast activity and promote full attenuation.

 

[Conan]

Thanks for the reply. 900mL starter....the kindle I'm typing on likes to make things up. I haven't been alive for 900 months.
The temp is set to 68 now but if there's no activity I'll pull it out. Kyle