I have two- 1bbl unitanks with the cooling coils from SSBrewtech. So far, they've been ok and have been able to get beer down to 38-40F. I'm just finishing up a fruited saison, fruited with raspberry and peach puree at about 2.5 lbs/gallon. With the added liquid, should bring the OG to about 11.1, FG 1.6. Glycol is usually set to 26F which hasn't caused issues before. This time, I go to cold crash and the beer gets stuck at around 58F and won't move. I grab a pump and start to do some recirculating and the temperature quickly drops to 41F or so over the course of an hour or so. I turn the pump off and the temperature begins to rise, quickly going back up to 50+ over the course of an hour, kick the pump back on and it goes down again.
At this point, based on some other threads I assume that maybe there's ice forming inside around the coils. I transfer the beer over to a 1bbl brite tank, open up the unitank and don't see anything. The brite tank which is also from SS brewtech, also has cooling coils and hasn't been great, but still manages to get the beer to 38F most of the time. Well, the exact same things starts to happen in there. At first it reads that the beer is coming in at 41F, but then it rises up to the low 50s. By this point I've raised the glycol temp to 32F to ensure that there's no freezing going on but this is still occurring.
Has anyone had something like this happen before?
At this point, based on some other threads I assume that maybe there's ice forming inside around the coils. I transfer the beer over to a 1bbl brite tank, open up the unitank and don't see anything. The brite tank which is also from SS brewtech, also has cooling coils and hasn't been great, but still manages to get the beer to 38F most of the time. Well, the exact same things starts to happen in there. At first it reads that the beer is coming in at 41F, but then it rises up to the low 50s. By this point I've raised the glycol temp to 32F to ensure that there's no freezing going on but this is still occurring.
Has anyone had something like this happen before?
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