Because our pots are made from stoneware and porcelain clays and glazes fired to a very high temperature, they are usually very durable in normal domestic use. Even the unglazed surfaces are vitrified (non-porous) so are generally easier to clean and more stain-resistant than low-fired earthenware. Most stains (such as tannin build-up from tea) or baked-on residue can be removed by soaking in dishwashing liquid and warm water, then rubbing gently with a sponge or nylon scouring pad, and sometimes a little bicarbonate of soda paste.
With reasonable care, they are usually fine in the dishwasher, microwave, and the general wear and tear of family life! However, it’s best to avoid dropping or knocking the pots on hard surfaces, or subjecting the pots to sudden and extreme changes of temperature (for instance by placing on cooktops or direct flames, or moving from a fridge to a very hot oven), as the thermal shock may cause breakage.