There is stoneware and then there is stoneware. Our Stoneshard™ dinner service is real stoneware because extremely skilled artisans cut, sand, and polish it from real river stones. The plates and platters are polished smooth on both sides, the larger serving trays and bowls retain the textured stone on the sides with smooth bottoms. You can wash Stoneshard™ in the dishwasher but we recommend you hand wash to retain the hand polished surface. Perfect for the paleo diet, a sweet indulgence, a picnic or a formal dinner party.