shanecb
Well-Known Member
Just got a Johnson A419 controller that is being used on a 5 cubic feet chest freezer for a fermentation chamber, and I have a question about setting the temp for fermentation.
The controller is currently set at 63 degrees, but earlier today it was reading a temperature of 46 inside the freezer (which is empty, just testing it out). That seems almost unacceptably too different. At the moment it's reading 58 inside.
Can anyone explain the big difference? When it actually comes to fermentation I'm going to have the probe on the side of the carboy covered in bubble wrap for insulation from the air temp as much as I can. If I want to ferment at 65 degrees, should I set the controller to 65 exactly, or something different to compensate?
Going to be fermenting with it for the first time tomorrow, and just want to make sure I have my ducks in a row. Thanks!
The controller is currently set at 63 degrees, but earlier today it was reading a temperature of 46 inside the freezer (which is empty, just testing it out). That seems almost unacceptably too different. At the moment it's reading 58 inside.
Can anyone explain the big difference? When it actually comes to fermentation I'm going to have the probe on the side of the carboy covered in bubble wrap for insulation from the air temp as much as I can. If I want to ferment at 65 degrees, should I set the controller to 65 exactly, or something different to compensate?
Going to be fermenting with it for the first time tomorrow, and just want to make sure I have my ducks in a row. Thanks!