This Le Creuset Insulated Cookie Sheet features a premium Le Creuset non-stick coating with a superior food release developed to resist sticking from higher sugar content baking. The non-stick coating is silicone based, manufactured without PFAS and oven safe to 240 degrees Celsius. Wide rims resist warping when heated and silicone inserts provide added grip when handling in and out of the oven. Hand wash recommended. Made to an optimum weight and supported by a Lifetime Limited Warranty.