Sat Jun 20, 2015 10:52 am
The speed you're moving the cooling liquid will make a big difference. A lot of times slowing down the flow rate will help get a better heat transfer.
I wrapped one of my conicals in tubing, but I was recircing water with an aquarium pump in a small cooler. I had 2L bottles full of ice that I swapped out once or twice a day. It held fermentation temps well but it was too small of a system to crash a vessel.
Lee
"Show me on this doll where the internet hurt you."
"Every zoo is a petting zoo if you man the fuck up."

BN Army // 13th Mountain Division
