Denby White Individual Pasta Bowl Similar in strength to stoneware, porcelain has a more translucent body and is naturally a white Material: porcelain; Practical and durable Similar in strength to stoneware It can be safely used in: Dishwasher - we recommend using low temperatures and liquid detergents; Oven & Microwave  for cooking and reheating food. Please note: Using microwaves as a means of warming empty dinnerware can cause damage to both your dinnerware and microwave and is therefore not recommended; Freezer  for storing food. All pottery and china can crack if exposed to sudden changes in temperature, no matter how strong it is, so please don't take items from the freezer and put them straight into the oven or microwave Please do not expose to direct heat sources such as the hob or grill.