I've been hearing of people fermenting in coolers, not as in refrigerators but like portable coolers like the orange Gatorade ones. I happen to have one of these that I've never even used it's food grade plastic number 2 I believe. The only two reason I could think that it would work is because the lid doesn't screw it just kind of pops in there, and fermenting temps would be hard to control. I have the tools to drill out an air lock hole, and I'm not to worried about the temps getting to hot because I can just put it in our basement which stays about 50 degrees. Any thoughts?