this product chooses the high-quality and exquisite white pottery as the stew inner pot, equipped with double lids for inner and outer airproofing. it cooks foods with the traditional water-secluded steam & stew method. hence to make the ready-made tonics retain their original delicious flavors.\n\nthis product can be used not only for stewing tonics, but also for steaming food and rice, besides, it can be used for disinfection of nursing bottles, and hence the purpose is very widely.