I'm finally getting around to making a temp controlled fridge for my primary fermenting.. I have a soda machine I just took all the shelves out and will be using. I tried using the thermostat on the machine, but the warmest I can get the machine is 52. I have a thermocouple in the jug, so I'm measuring liquid temp. I have decided to use an external temp control and will wire it in place of the machines thermostat. I will use the thermocouple in the wort to maintain the liquid temp.
Question is--- How long do I have to worry about maintaining the fermentation temp? Is it just for the few days of active fermentation, or the entire time it is in the primary... I've got a few batches I want to do consecutive, but only enough space to fit one carboy at a time.
The only reason I'm going through all this trouble is I have the parts at work and it doesn't cost me anything. I have been know to get a bit carried away sometimes..
Kick The Can Brewery