Review on 5Pack Large Oven Liners: Heavy Duty Gas Stove Covers, Non-Stick, BPA and PFOA Free 16'' By 24'' by Rudolph Mceachern

I have used this product 3 times so far and every time I put it on it burned underneath. The top of everything I cook is fine. I know the product must be the problem because when I wasn't using the product the bottom didn't burn. It only burns with the liner inserted. I'm not sure what I'm going to do with these liners, but I obviously can't use them in my oven. They seem to trap heat and destroy the ground. In addition, the photos show how this mat is used at the very bottom of the oven. Apparently you shouldn't do that. It traps heat and prevents normal ventilation.