Ordinary iron pots rust easily. If the human body absorbs too much iron oxide, that is, rust, it will do harm to the liver. At the same time, try not to use an iron pot to make soup. After brushing the pot, try to clean the water in the pot to prevent rust. If there is slight rust, it can be cleaned with vinegar. When frying in an iron pan, fry quickly and add less water to reduce the loss of vitamins. Finally, experts also reminded that it is not appropriate to cook hawthorn, hawthorn and other acidic fruits in an iron pot. Because these acidic fruits contain fruit acid, they will react with iron and produce low-iron compounds, which may be poisoned after people eat them. Don't use an iron pot when cooking mung beans, because the tannin contained in the bean skin will react with iron to produce black iron tannin, which will turn the soup of mung beans black and affect the taste and digestion and absorption of the human body.
Using the traditional iron pot in China is the safest kitchenware at present. Iron pots are mostly made of pig iron and generally do not contain other chemicals. In the process of boiling, there will be no dissolved substances in the iron pot and there will be no problem of falling off. Even if iron is dissolved, it is beneficial for human body to absorb it. Why do experts recommend using iron pots? Mainly because the iron pot has a good auxiliary effect on the prevention and treatment of iron deficiency anemia. After these powders are absorbed by human body, they are transformed into inorganic iron salts under the action of gastric acid, thus becoming the hematopoietic raw materials of human body and playing its auxiliary therapeutic role! You can do it. To solve the rust on the iron pan, we must first understand the causes of rust.
What is the reason why iron rusts easily?
People often lock valuables in the safe. Gold has been lying in the safe for thousands of years, and it can be clearly divided. Iron is not, even if it is put in a safe, it will be "stolen"-rusted.
Almost none of the ancient ironware displayed in the museum rusted; If you don't use a kitchen knife for a few months, you will be covered with rust. As the saying goes, "A sharp knife needs no yellow rust." Iron does rust easily. Every year, tens of millions of tons of steel rust in the world.
Iron rusts easily, not only because of its active chemical properties, but also because of external conditions.
Moisture is one of the conditions for iron to rust easily. Chemists have proved that iron will not rust for several years in absolutely anhydrous air.
However, water alone will not rust iron. People have tried to put a piece of iron in a boiling, closed distilled water bottle, and the iron will not rust.
Have you noticed those water pipes by the river? They often don't rust at the top and at the bottom, only the part near the water surface rusts. It turns out that iron will rust only if oxygen in the air is dissolved in water. In the part near the water surface, closest to the air, the oxygen dissolved in the water is also the most, so it is easy to rust. Dissolving carbon dioxide in the air in water can also rust iron. The composition of rust is very complicated, mainly iron oxide, iron hydroxide and basic iron carbonate.
It's too rusty. It is loose and soft, like a sponge. When a piece of iron is completely rusted, its volume can expand by 8 times. This spongy rust absorbs water very easily, and naturally, iron corrodes faster. There are many factors that make iron easy to rust, such as salt in water, unclean and rough surface of iron products, and other metals in iron ... "
From the above analysis, we know that rust is mainly caused by two factors: water and air.
In order to prevent the iron pan from rusting, it's OK to prevent these two things from getting together.
The specific practice is as follows
1 simple things.
After using the wok, hang it in a cool and ventilated place. Avoid direct sunlight.
2 Not used for a long time.
Put some oil on the wok.
Or fry fat pork, pigskin and other things, then wash the pot with a soft rag or loofah, and then hang it in a cool and ventilated place. Avoid direct sunlight.
3 usually pay attention.
Cook soup in an iron pot. When the water is boiled, put some oil on it.
Don't be too hard with the spatula.
Avoid using hard objects such as steel balls to brush the pot vigorously.
As long as you follow the above practice, you can basically ensure that the iron pot will not rust. Raw iron pots contain some impurities, which are easily oxidized to form other oxides, affecting the effect of iron supplementation. So it's best to use a fine iron pot. Compared with the raw wok, the refined wok has even heat transfer and is not easy to stick to the wok. At the same time, because the fine iron pot is made of good material, the pot can be made very thin and the temperature in the pot can be higher. Moreover, the surface of the fine iron pot is smooth and easy to clean. First burn it with white vinegar, wash off the rust, wash it with clear water and put it on the fire to dry. Use fat pork, put it in an exothermic pot, and don't put oil. Wait for the pork oil to boil out bit by bit. Keep burning and oil the inner wall of the pot. Wait until the pork looks out of oil. Reheat the following. Turn off the fire and let him cool off. Leave it overnight, and it won't rust for a long time. Method 2: 1. First, use nylon wire ball (similar to steel wire ball, but it won't hurt the iron pan) or loofah essence to scrub the rust on the iron pan. 2. Cook with cooked rice. When it is hot, wipe the wok repeatedly with a dish cloth. It won't take long. After the ceasefire, put it in a warm place, rinse the wok with clear water and dry it. 3. Just wipe all the cooking dishes with cooking oil, preferably through the process of using oil (such as fried fish, pancakes, etc. ), which will make the oil firmly adsorbed on the workpiece. Rice pickle knives don't rust. it wont hurt you to try it