Premium stoneware ensures excellent heat distribution for uniform browning and even cooking with no hot spots Superior heat retention keeps food warm or cold for serving Colorful glaze is nonporous nonreactive scratchresistant and resists stains and flavor absorption Virtually nonstick interiors easily release food for quick cleanup and resist cracking and crazing Unmatched thermal resistance for temperatures ranging from 9F to 500F Safe for freezer oven microwave broiler dishwasher and metal utensils