Stoneware is oven, microwave, refrigerator, freezer and dishwasher-safe. Resists chipping and cracking. Non-porous surface does not absorb food odors, flavors or stains. 7 oz. Durable stoneware material. Durable stoneware material. Dishwasher, refrigerator, freezer and microwave safe. Oven safe (preheated oven). Resists chipping and cracking. Non-porous surface does not absorb food odors, flavors or stains. Excellent for food preparation, sauces and desserts. Classic fluted design makes itself right at home on your kitchen counter or dining room table, so you can enjoy the ease-of moving from prep straight to presentation.