The raw materials of the casserole and the glaze on the pot contain heavy metals. The unglazed casserole is not safe, because the casserole made of clay is easy to corrode when holding acidic food, and the heavy metal components in it may enter the food and endanger human health; The main source of heavy metals in poor quality glazed casserole is lead in glaze.
Lead in the glaze of inferior casserole can be dissolved with acid. When acidic food comes into contact with glaze, lead may be dissolved by organic acids in food. As food enters the human body, it will cause great harm to the human body and cannot be metabolized.
Casseroles bought in regular supermarkets and shopping malls are generally safe. The casserole with smooth enamel surface has strong corrosion resistance and can prevent the precipitation of heavy metals. The safe way to stew casserole is to use less oil and avoid acid, so it is necessary to prevent heavy metal poisoning caused by the wrong ingredients when choosing casserole ingredients.
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Matters needing attention in using casserole correctly:
1. When the newly bought casserole is used for the first time, it is best to cook porridge, or use it to cook concentrated rice washing water to block the tiny pores of the casserole to prevent water seepage.
2, the enamel of the casserole contains a small amount of lead, so it is best to soak the newly bought casserole with 4% vinegar water before boiling, so that most harmful substances can be removed. The inner wall of the casserole is colored, so it is not suitable to store wine, vinegar, acidic drinks and food.
3. When using casserole to make soup and stew meat, you should first add water to the casserole, and then put the casserole on the fire, first with slow fire, then with strong fire. When placing the casserole from the top of the fire, it must be placed on a dry wooden board or straw mat, and never on a tile or cement floor.
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