Practical and durable, the Microstoven Collection from Maxwell and Williams is made from high quality stoneware featuring Spodumene, a mineral that makes stoneware flameproof and enables a multi function use. The coating features two layers of Xylan non-stick coating. Microstoven cookware can be used on gas, and electric stove tops (to medium heat) in the oven (to 200C/400F), in the microwave, dishwasher and freezer. Each item in the range is fully glazed, including the base to prevent scratching to tables and counter tops. Serve your food in style with this wonderful baker, ideal for lasagna, potatoes au gratin, main dishes and desserts.