Ambient temps

[BigNastyBrew]

I prefer to measure the temperature of the beer, not the air. Experiments have show a difference of about 0.5 F between the probe taped to the side of the carboy (and insulated as shown) and a thermowell inserted into the middle of the beer so either is great in my opinion.

True that!

I just don't feel like spending the $22 x 4 thermowells for 0.5°F

[Mylo]

I prefer to measure the temperature of the beer, not the air. Experiments have show a difference of about 0.5 F between the probe taped to the side of the carboy (and insulated as shown) and a thermowell inserted into the middle of the beer so either is great in my opinion.

Due to convection and CO2 currrents during active fermentation - I would suspect that the difference is even smaller than that. After things have calmed down, however, the difference is probably bigger - but who cares.


Mylo