EXCEPTIONAL STRENGTH: high-grade electroplated carbon steel makes this crisping tray warp and rust resistant, and oven safe to 220C. QUICK, EASY RELEASE: a double coating of the powerful Quantum II non stick means less mess and quick clean-ups; PFOA, PTFE and BPA free. VERSATILE CHOICE: at 39 x 27 cm (15 x 10 Inch), it's ideal for family snacks and meals, from crisp cookies to golden oven chips. USEFUL INFO: fridge, freezer and dishwasher safe; 20 years guarantee (5 years non stick). MasterClass Crusty Bake Baking Tray with 2-Layer Quantum II Non-stick Coating in Grey