rcubed1
Well-Known Member
I have a few carboys from early this summer with split batches of mixed-ferm sours, some turbid mash, some single-infusion mash. The one pictured below has a lower fill level than I had anticipated, coupled with temp change between 63-68, the airlock goes near dry every few days. I've had enough, so I plugged it with a silicon stopper. Every few days I lift the stopper just enough to relieve the minimal pressure. Is this a viable long term option, or am I just increasing my chances at oxidizing and/or creating excessive acetic acid? I don't really have any options to top off the carboy, other than to blindly blend some of them, which I don't want to do.
I'd get one of those breathable silicone bungs so you don't have to worry about pressure relief. They do make them for carboys.