Can Stoneware Be Used On A Stovetop?
No, do not use your stoneware on your stovetop or cooktop, under the broiler, or in direct contact with a flame or other heating element. Some stoneware—a ceramic baking dish, for example, is safe to use in the oven up to a maximum temperature that is specified in the product's use & care guidelines.
Always refer to the use & care guidelines that came with your stoneware before cooking with it.