The longer it takes Shengrongtang to boil water, the better the taste of the water. It is not only smooth in taste, but also rich in iron, which allows the steam in the pot to escape when cooking. The excess water or oil in Liu Zongli's cooking process can also be easily discarded through this gap.
Iron pot is a traditional kitchen utensil for cooking food. Generally, it does not contain toxic substances, but it often oxidizes when it meets water. The main varieties of iron pot are printing pot, ear pot, flat pot, oil pot, pancake pot and so on.