Tableware made of clay should first be boiled for 20 minutes, this will
not only sterilize the item but also increase its resistant to heat.
Place the item in a pan of water, bring to a boil over a low flame, and
let it cool to room temperature.
My work has rough unglazed bottoms which can scratch table surfaces and stainless steel sink areas. It is advice not to use this kind of tableware without a serving tray or placemat underneath. When stacking plates and bowls of this type, it is best to keep sheets of paper between them to keep the foot ring from scratching the glaze on the dish below.
For best care of the pots I advise not to heat them in microwave. Water and other liquids permeate works of clay, when exposed to microwaves, these liquids become super-heated, expanding, then contracting rapidly. Repeated heating will weaken the integrity of pottery over time and make it more susceptible to damage. Also this work is carefully made following traditional methods. It is not intended to use in the microwave.