Reason:
Iron pot has a good auxiliary effect on preventing and treating iron deficiency anemia. Because of the action of salt and vinegar on iron at high temperature and the friction between spatula and spoon, the inorganic iron on the inner surface of the pot falls off into powder with extremely small diameter. After being absorbed by the human body, these powders are transformed into inorganic iron salts under the action of gastric acid, thus becoming the hematopoietic raw materials of the human body and playing its auxiliary therapeutic role.
Iron is easy to combine with acidic substances to produce easily absorbed iron ions, promote blood circulation and achieve the purpose of enriching blood.
Iron pots generally do not contain toxic substances and will not be oxidized. In the process of stir-frying and cooking food, there are few dissolved substances in the iron pot, even if iron substances are dissolved, it is good for the human body.
Supplement:
Pig iron refers to an iron ingot smelted from iron ore, which is generally used as a raw material for casting or steelmaking. Wrought iron is a common name for low carbon steel, which has low strength and good plastic toughness. It should be noted that the real classification of steel materials is not the word "wrought iron", but steel or iron. Generally speaking, the carbon content below 2% is called steel, and the carbon content above 2% is called iron.