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You have to find out what material the chiller is made of and then you can find the proper cleaner to use. If it is stainless almost anything that isn't chlorine based would be fine to use. Aluminum on the other hand doesn't fare well with oxygen based cleaners. If it is copper oxalic acid would be best such as the product bar keepers friend.


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I do winter ferments in a big plastic tub (called a "muck bucket") full of water. I put the fermenter in that and put a 65W aquarium heater in the water. If it's really cold, the heater runs 24/7. when it's not so cold, I out it on a timer to come on at the coldest parts of the day. With ambient temps in single digits, I can keep steady temps between 50-...


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I also use a water bath for controlling fermentation temps. I found a bluetooth weatherhawk temperature sensor that reports to a mobile app and it is waterproof. So I built an stc 1000 temp controller to selectively switch between an aquarium heater & small recirc pump on the hot side and a peltier liquid chiller on the cold side.


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As mentioned before, using a swamp cooler is an excellent idea. In addition, if you work long days like me, and have no AC, like me, and your ice has dificulty maintaining the cooler themps you want, like me... you can add a small fan or even a box fan, blowing on a beach towel draped over the fermentation vessel thats dipped in the water. this adds ...


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