Our ceramics are handcrafted from durable, high quality porcelain. Our glazes are food safe and lead free. Our porcelain pieces are dishwasher, microwave and oven safe except where noted in their descriptions. For example, our bronze glaze should not be put in the microwave and this is noted in product descriptions of bronze glazed items. Although all of our pieces are dishwasher safe, hand washing will prolong the life cycle of your pottery. Dirt, stains, and metal marks from silverware (due to the ceramic being harder than the metal) particularly on our matte and semi-matte glazes, can be removed with Bar Keeper’s Friend, Mr. Clean Magic Eraser, or baking soda mixed with a bit of warm water. Do not expose the wares to dramatic shifts in temperature – e.g. do not put hot from the oven pieces into the refrigerator or from the freezer into a hot oven- allow for gradual change in temperature. Do not place over an open flame.