Is there any black substance harmful after wiping the iron pot? When we cook in an iron pot, we often find that a layer of black substances will be produced in the iron pot. Do you know that the black substances in the iron pot are harmful? How to clean the iron pot? Let's have a look
Is black harmful after wiping the iron pot:
Some netizens reported that no matter how to wash the iron pot at home, after cleaning it again, wipe it with a hurried handkerchief or paper towel. There is another layer of dark things on it, which looks very annoying.
In fact, the black substance in the iron pot is carbon black, which is produced after the incomplete combustion of organic fuel. It meets colder iron and accumulates on it. Because the bottom of the iron pot is in contact with the combustion flame, there is insufficient oxygen to oxidize the carbon on it and gradually accumulate into a thick layer of black carbon black. This principle is the same as making ink black in ancient times and will not waste fuel.
The black stains inside are not harmful to the human body, but it is best to clean them as much as possible and suck the water from the cleaned iron pot, otherwise the iron pot will rust and shorten the service life of the pot.
How to clean an iron pot:
1. Raw pork
Equip a piece of fatter raw pork, ignite and dry the iron pot, rub the raw fat pork in the pot, and wipe it spirally on the inner wall of the pot from inner ring to outer ring, so that the spilled grease can evenly cover the whole pot surface. In this process, you will find that the pork inside slowly turns black. Pour out the black lard and clean the iron pot. If this procedure is repeated several times, the back iron pot will not always have black tires.
2. Iron pot 'annealing'
Get some sawdust, straw and other things in the iron pot, put them in the pot, light the fire and bake the iron pot, which can play the role of 'annealing' and change its hard and brittle properties. Then rub the pot with emery cloth, ash or straw. Then fire and soak the pot with pork once, which can enhance the fire resistance and rust resistance.
3. White vinegar
Heat the pot and put about 250g of vinegar. When there is a squeak, dip in vinegar and brush the iron pot, then pour out the vinegar and wash it with clean water to remove black ash and rust. Then wipe the pot with cooking oil, put the pot on the fire for a few minutes, and then wipe it with cloth or cotton for a while, the rust will be removed, and it will not rust until the pot is worn.
4. Baking soda
Put baking soda into the iron pot and add water to boil. Then when the water becomes cold enough not to be hot, brush the iron pot with a steel ball to make the iron hook in the iron pot clear and clean. Then wipe the pot with cooking oil and put the pot on the fire for a few minutes. After that, there will be no iron scale again.
5. Rice washing water
The decontamination effect of rice washing water is very strong. First put the thick rice washing water into the iron pot and soak it for about 2-3 hours, then boil the rice washing water, and brush the iron pot bit by bit with a steel ball during the burning process. After the rice washing water is boiled and boiled for a period of time, the stubborn iron stains on the iron pot can be cleaned.
How to use the iron pot correctly:
1. After each dish is fried, brush the pot once, and then fry the next dish. After each meal, the inner wall of the pot must be cleaned and dried to avoid rust and iron oxide harmful to human health.
2. Try not to use an iron pot to cook soup, so as to avoid the disappearance of the rust free edible oil layer on the surface of the iron pot.
3. Do not use an iron pot to hold vegetables overnight, because the iron pot will dissolve iron under acidic conditions and destroy vitamin C in the vegetables.