First of all, soaking feet in plastic pots or buckets is harmless to the body. The main material for making plastic cans or buckets is polyethylene, which is a polymeric substance. Secondly, the melting point of plastic is greater than 100 degrees Celsius, and the temperature of our foot bath is generally within 50 degrees Celsius. At this temperature, the chemical formula of plastic is very stable, so there is no need to worry about releasing toxic substances.