Since my return to brewing, I'm a dozen batches in and starting to dial in my process and feeling confident about things...
Today I got a FG of 1.020 on a batch that I expected to get down to 1.010.
It's a pale ale that I've made before, except that I upped the grain bill a little bit (SG 1.064). I used slurry from a previous batch with a similar recipe (S-05). This is the fourth pint jar that I have pitched from the harvested yeast. The other three pint jars worked perfectly on very similar recipes... Nothing looked off when I pitched it. I had activity less than 6 hours after pitching so I thought all was well.
Do you think this is because it was the last jar of the bunch and sat in the fridge three weeks? Another possibility is that the ferment temps may have been lower than the first batch (lower 60s F instead of mid to upper 60s). It fermented for 4 weeks, which has been more than enough time previously.
It's too late to do anything about it this time because I've already kegged it and washed the bucket out, but I'm just looking for some ideas on what might have happened.
Today I got a FG of 1.020 on a batch that I expected to get down to 1.010.
It's a pale ale that I've made before, except that I upped the grain bill a little bit (SG 1.064). I used slurry from a previous batch with a similar recipe (S-05). This is the fourth pint jar that I have pitched from the harvested yeast. The other three pint jars worked perfectly on very similar recipes... Nothing looked off when I pitched it. I had activity less than 6 hours after pitching so I thought all was well.
Do you think this is because it was the last jar of the bunch and sat in the fridge three weeks? Another possibility is that the ferment temps may have been lower than the first batch (lower 60s F instead of mid to upper 60s). It fermented for 4 weeks, which has been more than enough time previously.
It's too late to do anything about it this time because I've already kegged it and washed the bucket out, but I'm just looking for some ideas on what might have happened.