I brewed a 1BBL IPA and split it into 2x 15 gallon fermenters.
I fermented both for 3 days with a blow off cane before capping them off with a PRV and finishing under pressure.
Total ferment for both (using US-05) was 8 days at 68F and then raised to 71F for an additional 2 days
On day 11, I dropped the temp of one to 55F while dropping the other back to 68F.
I added 8oz of hops to each... when adding to the 68F fermenter, there was evidence of increased activity and CO2 blow off but nothing out of what I expected.
However when adding the dry hops to the 55F fermenter... the activity that kicked up was INSANE. As the headspace filled with foam and hops, the PRV clogged - so I had to be quick about throwing a blow-off cane on to help ensure the pressure wasn't about to pop my fermenter. As you can see... in the time it took to replace a blank TC cap with the blow-off cane... it made quite a mess. Bye Bye dry hops!
Any ideas what gives? Both of these fermenters were treated the same. The intent was to compare the end result of dry hopping at fermentation temp vs cold temp, all while under pressure. But I did NOT have much luck with this experiment!
I fermented both for 3 days with a blow off cane before capping them off with a PRV and finishing under pressure.
Total ferment for both (using US-05) was 8 days at 68F and then raised to 71F for an additional 2 days
On day 11, I dropped the temp of one to 55F while dropping the other back to 68F.
I added 8oz of hops to each... when adding to the 68F fermenter, there was evidence of increased activity and CO2 blow off but nothing out of what I expected.
However when adding the dry hops to the 55F fermenter... the activity that kicked up was INSANE. As the headspace filled with foam and hops, the PRV clogged - so I had to be quick about throwing a blow-off cane on to help ensure the pressure wasn't about to pop my fermenter. As you can see... in the time it took to replace a blank TC cap with the blow-off cane... it made quite a mess. Bye Bye dry hops!
Any ideas what gives? Both of these fermenters were treated the same. The intent was to compare the end result of dry hopping at fermentation temp vs cold temp, all while under pressure. But I did NOT have much luck with this experiment!