That was the way I used to do it but I bought the mini fridge and started out with it at 50 degrees inside then gradually reduced it to 40 after several weeks. It is easier this way as I just leave them in the pot and place them in the empty little fridge over night and take them out and put them back under the lights in the day time. Most of the traps get very tiny but about 4 of them got even bigger in their dormancy stage.
