ideally would be in a thermowell in the beer. without that, I like to tape it to the side of the carboy and then wrap it (the carboy) with something insulating, so that it more accurately registers the temperature of the beer, not just the fridge.Should the probe from a temp controller be in water while in the fridge? or just hanging in the air?
I leave mine in the air. IMHO it takes a long time for 5 or 10 gallons of beer to swing in temp. So when the beer goes out of range it tells the unit to turn on, it will stay on until the beer reaches temp and then the ambient could be well below freezing. The beer continues to cool and then takes a long time to warm to set off the controller again so now the ambient could be 45°-50° or more.
my 2 cents ..
Well, you just threw a big wrench in the works with this post. You have a very compelling argument. I use a liquid chiller that maintains temps in a big rubbermaid container that my carboys sit in. So my situation is a little different, but I was about to say tape it to the carboy. Now I am now more inclined to say leave it hanging in open air.
it would be during fermentation.are we talking during fermentation or after here?
it would be during fermentation.
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