Granitestone Diamond grill pan has triple food-grade granite layers for maximum durability and to prevent age or heat-induced warping. This grill pan fits your everyday cooking needs from saute, stir fry, or sear to bake or fry. Pressed aluminum inner layer for high heat conductivity and for even surface heating (perfect for searing steaks). Graniterock is oven-safe up to 500 Fahrenheit or 260 Celsius. Toxin Free Ceramic Non-Stick Coating PFOA Free frying pan that boasts a scratch-resistant surface. Suitable for all stovetops including gas, electric, halogen, or ceramic. Metal utensil safe. Titanium/ceramic; hardware: stainless steel handle. Dishwasher safe.