Bitz plate is made of sturdy stoneware. The combination of the plate's exterior matte glaze and the glossy glaze on the inside gives a unique and exciting expression. The plate can withstand machine wash, microwave and oven up to 250 degrees. You can also mix and match with other stoneware products from Bitz so you get a set that suits you. Bitz mat and reactive glaze make each product unique and colour changes occur. Scratches will appear.