Nowadays, there are so many pot materials on the market that many people have made difficulties in choosing. The traditional iron pot can no longer meet our daily needs. There are also many people in the choice of iron pot or stainless steel pot this problem is very tangled. So is the iron pot or stainless steel pot good? What other materials are worth using. Then I'll follow Xiaobian to understand it.

1. The iron pot should be stir fried and the soup should not be boiled

Experts from the World Health Organization suggest using an iron pot when cooking, because the iron pot generally does not contain other chemicals, and there are few dissolved substances. Even if iron is dissolved, it is good for human body.

Nutrition experts point out that cooking in iron pot is the most direct way to supplement iron. However, the iron pot is easy to rust, so it is not suitable to hold food overnight; it is also not suitable to cook soup, or the oil layer on the surface of the iron pot that protects its rust will disappear.

Expert advice: Brush iron pot should use less detergent, slight rust can be cleaned with vinegar. The best new iron pot with salt water bubble, and then rub the salad oil to remove the odor. You can also cut the ginger into pieces, heat the pot and wipe it.

2. The stainless steel pot is suitable for cooking porridge and avoiding acid and alkali

Iron pot is easy to rust, while stainless steel pot is beautiful and durable, so many people choose practical stainless steel pot. In this regard, we should pay attention to the potential safety hazards of unqualified stainless steel pots. Generally, unqualified stainless steel pots exceed the standard of chromium. Hexavalent chromium is listed as one of the chemicals harmful to human body, and is one of the internationally recognized carcinogenic metals.

Expert advice: stainless steel pot is not completely rust free, if long-term contact with acid, alkali substances will also have a chemical reaction. Therefore, the stainless steel pot is more suitable for porridge cooking, and should not be used for a long time to contain salt, soy sauce, vegetable soup, etc., and should not be washed with strong alkaline or strong oxidizing chemicals.

3. Do not stick to the pot, stir fry gently instead of frying

Non stick pot is easy to clean, but far less than iron pot from a health point of view. Nutrition experts pointed out that the non stick pot is all due to the coating named "TEFLON" at the bottom of the pot. If the coating is dry burned or the oil temperature reaches more than 300 ℃, it may be damaged.

Experts suggest: many dishes need frying, the boiling point of oil is 320 ℃, which can easily lead to the decomposition of harmful ingredients in non stick pot. So when frying or frying food, avoid using non stick pot.

4. Aluminum pot is not suitable for cooking with metal shovel

The characteristics of aluminum pot are excellent heat distribution and lighter body. However, improper use of aluminum will dissolve in large quantities, and excessive consumption of aluminum for a long time will accelerate human aging.

Aluminum pot is not suitable for high-temperature frying and frying. High temperature or metal shovel collision and friction with aluminum pot may release aluminum components.

In addition, aluminum pot can not contain strong acid and strong alkali dishes, such as pickled food. Caution: try not to use aluminum tableware. Aluminum tableware and iron tableware can not be used together, the chemical interaction between them will lead to more aluminum ions into the food.

5. Glass pot should be used to boil medicine and avoid falling

At present, there are also glass pots in the market. Nutrition experts pointed out that the glass pot insulation effect is poor, fragile, when moving, you need to be extra careful to avoid collision with hard objects.

Experts suggest: it's safer to boil traditional Chinese medicine or medicated meals in glass pot, because many herbs can't use copper pot with a large amount of copper ions, stainless steel pot with a large amount of nickel chromium ions, ceramic pot with a large amount of enamel, iron pot with a large amount of iron ions, or casserole, because the crucible soil of modern manufacturing casserole doesn't pay attention to material selection, which contains many Harmful impurities, while the glass pot is relatively safe, there is no smell.

6. It's better to make soup and avoid sour food

Because of the good air permeability and special material, many people like to use ceramics, casseroles and purple sand to make soup or tea. However, due to the lead contained in the beautiful coat (glaze) of some porcelain, if the temperature is not enough when firing the porcelain or the glaze coating ingredients do not meet the standards, the pot may contain more lead, which may cause heavy metal poisoning.

Experts suggest that pottery should not be used to store wine, vinegar, acid drinks and food. The newly bought casserole should be first boiled in 4% vinegar water. When choosing enamel tableware, the surface should be smooth, even and bright.