JoeBeer100 wrote:When using a temperature controller, do you put the probe in the air, or attach it to a carboy? For the fermentation chamber, I am considering using a household thermostat and a relay. Of course, this would only be able to measure the air temperature.
I use a thermowell placed inside the carboy. If that is not in your plans, tape the probe to the side of the carboy and cover with foam on the outside.