The Luxe Kitchen 37cm Hard Anodised Deep Oven Tray is durable, won't warp and is perfect for both cooking and baking. Made to be an excellent heat conductor with no hot spots, abrasion resistant and metal utensil safe. Oven safe up to 240°C / 464°F / Gas mark 9. PTFE and PFOA free, with a 20 year guarantee.