It is not recommended to make soup with iron utensils. The so-called long cooking time, the longer the iron compound is produced at long-term high temperature, the greater the toxicity. Iron pots are easy to rust, and the human body absorbs too much iron oxide, that is, rust will cause damage to the liver. When using an iron pan, it is necessary to observe some principles for health.
Extended data:
Iron pot is a traditional kitchenware for cooking food. Generally, it does not contain toxic substances, but it will be oxidized when exposed to water for a long time. The main varieties of iron pots are printing pots, ear pots, flat pots, oil pots and pancake pots. The main component is iron, but also contains a small amount of sulfur, phosphorus, manganese, silicon, carbon and so on.
Ordinary iron pots are easy to rust, and the human body absorbs too much iron oxide, which is harmful to the liver ... Therefore, people need to follow some principles when using iron pots to be healthy. These principles are:
1, stir-fry a dish, brush the pot once, and stir-fry another dish. After each meal, the inner wall of the pot must be cleaned and the pot must be dried to prevent the pot from rusting and producing iron oxide harmful to human health.
2. Try not to use an iron pot to make soup.
3. Don't hold vegetables in an iron pot overnight, because the iron pot will dissolve iron and destroy vitamin C in vegetables under acidic conditions.
4. Use detergent as little as possible when washing the pot. If the pot is slightly rusted, it can be cleaned with vinegar.
5, for serious rust, black slag, black skin iron pot, should not be used again.
In addition, don't use an iron pot to boil medicine, and it is not appropriate to cook mung beans in an iron pot.