JohanTheMighty
Well-Known Member
Hi guys. I'm about to brew a stout using the US-04 yeast. While I really like this yeast, even when fermenting in a swamp cooler with the water kept at 64 degrees, the fermentation is vigorous. I run blowoff tubes to gallon jugs, half full of water and with iodine, and I still end up with blowoff overflowing from the jugs. I was thinking I could keep the water temp at 60 degrees. I've been told that the temp of the fermenting wort is typically much warmer than the ambient temp and that it's the wort temp, not the ambient temp, to which the "ideal fermentation temp" refers. By that logic, maintaining an ambient water temp of 60 degrees would be an acceptable solution to slow the fermentation and keep things clean. That said, I may have been misinformed, or my logic is flawed, so any help/clarification would be greatly appreciated.