It's rust and warp resistant, and oven safe to 220°C. Fridge, freezer and dishwasher safe. PFOA, PTFE and BPA free. This small oven tray has 2 non stick layers, releasing food quickly and with less mess. Heavy duty electroplated carbon steel makes it a dependable pick. This small baking tray can be used individually or nested with other MasterClass trays for divided cooking.