Proprietary Americoat Plus, a safe and natural silicone coating, creates a nonstick surface considered the best in the industry, releasing foods easily * Professional-gauge aluminized steel is guaranteed not to bend, warp, rust or corrode under normal baking conditions * Exclusive corrugated surface circulates air all around food for continuous-even baking * Oven-safe to 450 F * Proudly made in the USA, with 65% recycled steel