According to Baidu Health, tooth enamel is usually made of inorganic glass enamel, which is generally harmless to human body. Enamel is harmless to human body. Common enamel pots are all white, and the enamels used for production are silicon oxide, aluminum oxide and so on. Enamel itself is environmentally friendly and nontoxic, and its chemical properties are relatively stable. However, enamel pots are not suitable for cooking, and they can't be used to store foods with strong acid and alkali. Enamel pot bottom glaze contains lead. In the firing process, if the temperature is not high or the glaze used is unqualified, it will lead to lead in the pot. If food touches the pan, lead will seep into the food from the spilled surface. The amount of lead and cadmium dissolved in unqualified enamel pot exceeded the standard. When holding acidic food, long-term use of lead and cadmium content is too high, which is easy to cause heavy metal poisoning.
Enamel, also known as enamel, is a composite material in which inorganic glassy materials are fused on the base metal and firmly combined with the metal.