I just brewed 10 gal batch of an ESB on Sunday, this became a true Labor Day brew. Since I am feeling my way though a new brew rig. In the past I used a Gott cooler for 5 gal batches. I just moved up to a 15 gal Sanke keg, brew day started pre heating the tun then drained most of the mash water, adjusted it to 170 F added my 23# of grain planning to hit a 154 F mash temp. To my surprise temp was reading 160 F. To compensate I added about a gal of preboiled room temp water (in hindsight my temp would have settled in at 154 if I would have waited 10 minutes for the grain to absorb the 170 F temp of the water). By adding this cool water my temp lowered my mash temp to 150 F not catastrophic but not what I wanted. I waited 20 mins and I decocted about 1/4 mash and boiled for a few mins but the mash failed to rise, I pulled a second decoction and boiled. This brought the temp to 152 and I was happy with that. Lautered and ended up with 12 gallons of wort. I Boiled 90 mins, added hops during boil, immursion cooled. My efficiency was much higher than the 70% I had expected for, I was shooting for an OG of 1.052 and my actual OG was 1.064 (78% efficiency). I split batch between (2) 5 gal fermenters.
Here is were my question arises I used a different yeast strain for each
Fermenter 1 (5 Gal air locked carboy) is London ESB 1968 with built up starter
Fermenter 2 (5 Gal Cornie open fermenter) Safale 004 English ale sprinkled from pack.
Ferment temp in my caller is 62 F (I suspect the temp in the fermenter is a degree or 2 higher.
I know the 1968 usually finishes around 1.015 to 1.018 so I am contemplating ramping up my ferment temps (I'm thinking 67 F) at the end of the ferment to get better attenuation. Anybody have experience with this yeast? I know I am currently on the low side (too low perhaps) of the suggested fermenting range and I am worried it won't even attenuate to the average level for the 1968 yeast.
Here is were my question arises I used a different yeast strain for each
Fermenter 1 (5 Gal air locked carboy) is London ESB 1968 with built up starter
Fermenter 2 (5 Gal Cornie open fermenter) Safale 004 English ale sprinkled from pack.
Ferment temp in my caller is 62 F (I suspect the temp in the fermenter is a degree or 2 higher.
I know the 1968 usually finishes around 1.015 to 1.018 so I am contemplating ramping up my ferment temps (I'm thinking 67 F) at the end of the ferment to get better attenuation. Anybody have experience with this yeast? I know I am currently on the low side (too low perhaps) of the suggested fermenting range and I am worried it won't even attenuate to the average level for the 1968 yeast.