Ntxiv nrog rau lawv qhov kev thov kom zoo nkauj, cov khoom siv ceramic no tau tsim nrog kev ua tau zoo hauv siab. Lawv yog microwave thiab tshuab ntxuav tais diav muaj kev nyab xeeb, ua rau lawv yooj yim rau kev siv txhua hnub. Cov glaze tsis muaj tshuaj lom, tsis muaj hmoov txhuas ua kom koj cov zaub mov nyob nyab xeeb thiab noj qab nyob zoo. Txawm hais tias koj tab tom tuav noj hmo los yog txaus siab rau ib pluag mov xws li tsev neeg, cov khoom no muab qhov zoo tshaj plaws ntawm kev zoo nkauj thiab kev ua haujlwm. Lawv cov ntim khoom zoo nkauj kuj ua rau lawv xaiv qhov khoom plig zoo tshaj plaws rau tsev neeg thiab cov phooj ywg ntawm lub sijhawm tshwj xeeb