It is best to use casserole, casserole or enamel utensils for cooking traditional Chinese medicine, and it is not recommended to use iron pot or aluminum pot, so as to avoid the chemical reaction between metal and medicine and reduce the efficacy. Casseroles and jars are heated evenly, and the heat transfer is slow, so the liquid medicine is not easy to evaporate. Stainless steel pot can also be used to cook Chinese medicine, but attention should be paid to the requirements of different Chinese medicine prescriptions for utensils.