emerinohdz
Member
Hi!
We've been (partially) naturally carbonating our beer in our SSB unitank. We set our spunding valve to 12psi when we are a few gravity points away from our FG and leave it on for about 5 days at 66F before cold crashing to 38F.
After a few of days of cold crashing, the pressure gauge reads 6psi on the fermenter.
According to the carbonation charts, when the beer was at 66F with 12psi of pressure, it should had only ~1.5 volumes of co2, however after cold crashing at 38F and with the gauge reading 6psi we should have ~2 volumes of co2. I was actually expecting the pressure to reach closer to 1psi to match the original volumes of co2.
I'm guessing the extra volumes of co2 are being absorbed from the head space, is this correct and if so, is there a way to calculate these extra volumes of co2 that'll be absorbed at cold crash?
Thanks!
We've been (partially) naturally carbonating our beer in our SSB unitank. We set our spunding valve to 12psi when we are a few gravity points away from our FG and leave it on for about 5 days at 66F before cold crashing to 38F.
After a few of days of cold crashing, the pressure gauge reads 6psi on the fermenter.
According to the carbonation charts, when the beer was at 66F with 12psi of pressure, it should had only ~1.5 volumes of co2, however after cold crashing at 38F and with the gauge reading 6psi we should have ~2 volumes of co2. I was actually expecting the pressure to reach closer to 1psi to match the original volumes of co2.
I'm guessing the extra volumes of co2 are being absorbed from the head space, is this correct and if so, is there a way to calculate these extra volumes of co2 that'll be absorbed at cold crash?
Thanks!