Can plastic margarine/mayo/oil pails be used for sous vide water baths? Sorry if this has been discussed before, I came up with nothing searching. I just got a Sous Vide Professional and tried it out clamped on the side of a stock pot, it worked great for salmon, which is all I tried so far. We needed the the stockpot for other things so my water bath got quickly dumped. So I was going to get another stock pot, but then it occured to me that we have dozens of clean pails that might be used for the sous vide water bath. They are obviously food grade but I'm wondering if the plastic would degrade with use in a prolonged hot water bath. Does anyone have any experience with this? These are the white plastic 5-gal buckets that margarine, mayonnaise and vegetable oil get shipped in, if it works it would be ideal because I can cut a hole in the plastic lid to accommodate the circulator and mimimize evaporation. Plus they're free and stock pots cost $$.