Our commercial-quality bakeware features a unique textured surface that promotes ideal air circulation and a double-duty nonstick Americoat and silicone glaze finish for clean food release. Durable folded construction with heavy-gauge wire is warp-resistant and rustproof. Due to this extra large cookie sheet's heat efficiency, we suggest monitoring the oven temperature and cooking time for the first few uses, then making adjustments to recipes as necessary.