Handcrafted Italian stoneware. 13"Sq. Dishwasher and microwave safe. Made in Italy. Care & Use: Dishwasher safe We recommend using a non-citrus, nonabrasive detergent on the air dry cycle and not overloading the dishwasher. Hand washing is recommended for oversized items. Microwave safe The temperature of handmade, natural clay items may vary after microwave use. We recommend allowing items to cool before taking them out of the microwave or using an oven mitt. Oven safe VIETRI's casserole and.