Please know that each piece you purchase has been made by hand. This accounts for the approximate measurements and the glaze treatment. Some have been made on the potter’s wheel and some have been crafted using only my hands. The clay I work with is a stoneware body which is very durable and is dishwasher, oven, microwave and freezer safe. My glazes are all food safe and contain no lead or toxic substances. These pots are 100% safe for cooking, serving and storing food. If your pot has been refrigerated or frozen, be sure to let it stand at room temperature and raise the oven temperature slowly.