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, non-reactive, scratch-resistant, and resists stains and flavor absorption Virtually nonstick interiors easily release food for quick clean-up, and resist cracking and crazing Unmatched thermal resistance for temperatures ranging from -9°F to 500°F Safe for freezer, oven, microwave, broiler, dishwasher and metal utensils