Product review (3 stars): CAN'T TAKE THE HEAT
I purchased this over 9 months ago and saw there was build up stating and went to remove it to clean it and parts of it broke off, stuck to the metal part of the stove. So over time these will not hold up, especially if you are using your oven as I guess this isn't made of heat resistant material. So will look for another brand that may work better at not becoming brittle over time.