Why is the pot made of iron? What is called an old iron pot

Because iron is used to make a pot, it can absorb iron when cooking! Otherwise, we can easily be caused by iron deficiency - iron deficiency anemia!

So it's mostly made of iron! It is not excluded that there are places where there are stainless steel beaten!!

Iron has good thermal conductivity and high melting point, and iron ions are good for the human body.

It is recommended to use a cast iron pot, which can promote the absorption of iron, and the wrought iron pot can absorb less iron, but it conducts heat quickly and does not require fire.

There are Lu's stainless steel ones, and in the early years, without these materials, other metals are not easy to use, and there may be pots with newer materials in the future.

The wrought iron pot is called the old iron pot.

The old iron pot is a wrought iron pot, and the wrought iron pot is handmade, which is environmentally friendly and has fast heat transfer and exquisite appearance. And the general iron pot is a cast iron pot, and the cast iron pot is a pig iron pot.

The pig iron pot is made of gray iron melted and cast with a model; Wrought iron pot is made of black iron forging or hand hammering, which has the performance of thin pot blank and fast heat transfer. At present, there are some theories that iron pots can supplement iron, but there are no experiments to prove that cooking in iron pots can replenish iron.

Wrought iron pot boiling information:

Warm water cleans the inside and outside of the iron pot, and the corners and corners of the pot are cleaned once, and you can find that the washed water is very black. After washing, wipe the outside of the pot with a rag, add half a pot of water to the pot and boil, and then boil for another 5 minutes. Pour out the boiling water and clean the pot repeatedly with dish soap from the inside to the outside, and you can see that the water will not turn black again when you wash it a second time.

After cleaning the pot, wipe all the water on the pan with kitchen paper. Turn on low heat to heat the pot, then pour in more cooking oil, pick up the pot and shake it, so that the oil is fully moistened and soaked into every part of the pot.

Then pour out the excess oil, put the pre-prepared fat pork into the pot to refine the oil, wipe the fat pork in the pot repeatedly, turn off the heat in time when the pot is hot and slightly smoking, and then heat and wipe it slightly when it is slightly cool, and repeat 3 times. Clean the pot with warm water, wipe the water with kitchen paper, brush a layer of cooking oil in the pot to form a layer of oil film on the pot body, let it stand for 12 hours, and the pot is completed.

Summary. 1.Look at the iron.

The fracture of gray cast iron is dark gray with coarse crystalline particles. Compared with white iron pots, gray iron casting pots are easier to transfer heat, have better toughness and elasticity, and have greater adaptability to sudden cooling and heating. In addition to the composition of cast iron testing, observation of fractures, usually use the "listening method" to identify, gently pat the inner wall of the pot with your hand, if the pronunciation is dull and does not resonate, it is high-quality gray cast iron; If the sound is loud and melodious, it must be white cast iron.

In addition to the difference between gray and white iron, there is also a kind of purple cast iron (or clamp and hemp cast iron) in between. The properties of this iron are almost the same as that of gray cast iron, and it is also an excellent cast iron (the sound is louder than that of gray cast iron, but it is not as crisp and pleasant as white cast iron, and the resonance is also less).

1.Look at the iron. The fracture of gray cast iron is dark gray with coarse crystalline particles.

Compared with white iron pots, gray iron casting pots are easier to transfer heat, have better toughness and elasticity, and have greater adaptability to sudden cooling and heating. In addition to the test of the composition of cast iron and the observation of fractures, it is usually identified by the "listening method", and the inner wall of the pot is gently patted with the hand, if the pronunciation is dull and does not resonate, it is high-quality gray cast iron; If the voice is loud and pleasant, and the land has been defeated for a long time, it must be white cast iron. In addition to the difference between gray and white iron, there is also a kind of purple cast iron (or clamp and hemp cast iron) in between.

The properties of this iron are almost the same as those of gray cast iron, and it is also an excellent cast iron (the sound is louder than that of gray cast iron, but it is not as crisp and pleasant as white cast iron, and the resonance is also smaller).

2.Look at the process. A good iron pot should be smooth inside and out, uniform in thickness, without sand holes, and the bottom and ears of the pot should be flat and upright.

Because the finish of the iron pot not only affects the appearance, but also affects the use. The finish requires that there are no pimples inside and outside the empty compass wall of the pot, and there are no burrs and uneven places, so as not to hinder the use of utensils such as spatulas. The thickness of the iron pot is distributed as follows:

The place near the bottom of the pot where the fire is more concentrated is thicker or disturbed, the body of the pot is thinner, and the edge of the pot is slightly thicker.

Dear, there is a way to judge the qualification: smell the smell: the iron pot bought back should be boiled first, if the pot smells a more pungent smell, it is generally an inferior iron pot. 4 Listen to the voice:

When buying an iron pot, use a spatula or iron tool next to it to knock on the iron pot, if the sound sounds dull, it may be a bad branch spike iron pot, a good iron pot sounds loud and crisp.

Summary. First, look at **. Cheap is not a good iron pot, and a good iron pot is not cheap.

Many cheap iron pots on the market are refurbished, and cast iron is reprocessed with discarded old ironware, and the surface looks bright and bright, and it is impossible to distinguish between good and bad. In particular, some businesses smash pots and iron the spot, and the quality is very hard. But this kind of wrought iron sheet is refurbished, because this kind of low-quality material made of iron pot is resistant to falling, and it can't be broken.

How to distinguish an iron pot.

The first or Han's, see **. Cheap is not a good iron old cong pot, and a good iron pot is not cheap. Many cheap iron pots on the market are refurbished, and cast iron is reprocessed with discarded old ironware, and the surface looks bright and bright, and it is impossible to distinguish between good and bad.

In particular, some businesses smash pots and iron the spot, and the quality is very hard. But this kind of wrought iron sheet is refurbished to make loose shirts, because this kind of low-quality material made of iron pot is resistant to falling, and it can't be broken.

Scrap copper rotten shouted that it was made of eggplant iron, or not. Second, see whether the production information is complete. The regular iron pot is the iron pot worth buying, and it will generally be marked with the manufacturer, factory address, contact **, production date, and certificate.

If there is no such information, you must not buy, there is no production information of the iron pot is unknown, the quality is low, and it is very harmful to the human body. It is best to choose a reputable shopping mall and a trustworthy brand. Especially those pots with non-stick pan layers, it is generally impossible to distinguish between good and bad, so you must choose a big brand, and then look at the quality of the iron pot itself to decide.

Third, look at the production process and material. The regular iron pot is made of excellent material, thick, and the workmanship is delicate and delicate. Those toxic iron pots are made of discarded inferior raw materials, with simple and rough craftsmanship and light texture.

When buying, you can tap the iron pot, the sound is loud and crisp is the high-quality iron pot, and the low-quality iron pot is dull and has no rolling sound. You don't have to worry too much about the rust spots on the iron pot, it doesn't necessarily mean that the quality is poor, it may be that the time is longer, and it is safer to use. However, if there are depressions or trachoma, be sure not to buy them.

Fourth, look at the actual use. The smell is to distinguish whether to buy the poison iron pot of the main search Kai to standard, the new pot after buying back for a few minutes, if you smell the pungent smell, the quality must be a problem, must not be used. If the nuclear leakage is rotten and the heat conduction is fast, and the texture is thin and easy to deform, most of the quality is not up to par, and it is also easy to be damaged and cannot be used.

If trachoma and bubbles are found after use, most of the low-cost harmful substances of the iron pot leakage, must be used with caution.

Woks are generally iron pots, which can be divided into pig iron and wrought iron.

Wrought iron is light and thin, and it is easy to scorch the pot when the fire is large;

Pig iron is bulky but thick, evenly heated, easy to control, and replenishes iron.

Look at whether the surface is smooth, but can not be as smooth as a mirror, due to the casting process, the iron pot has irregular shallow lines. The defective and small protruding parts are generally iron, which has little impact on the quality of the pot, but the small pits are more harmful to the quality of the pot, so you need to pay attention to it when purchasing. Second, "listen", the uneven thickness of the pot is not good, when buying, you can turn the bottom of the pot to the sky, use your fingers against the center of the concave surface of the pot, and knock it with a hard object.

The louder the pot sound, the greater the vibration, the better. In addition, the pot with rust spots does not necessarily mean that the quality is not good, the pot with rust spots indicates that the storage time is long, and the longer the pot is stored, the better, so that the internal organization of the pot can be more stable, and it is not easy to crack when it is first used.

Ordinary iron pots are easy to rust, and if the human body absorbs too much iron oxide, that is, rust, it will be harmful to the liver, so it is not suitable to hold food overnight. At the same time, try not to cook soup in an iron pot, so as not to disappear the cooking oil layer on the surface of the iron pot that protects it from rust. Detergent should also be used as little as possible when brushing the pot to prevent the protective layer from being brushed out.

After brushing the pot, try to wipe the water in the pot to prevent rust. If there is a slight rust, you can use vinegar to clean it. When stir-frying in an iron pot, stir-fry quickly and add less water to reduce the loss of vitamins.

It is not advisable to use an iron pot to cook acidic fruits such as bayberry, hawthorn, and begonia. Because these acidic fruits contain fruit acids, they will cause chemical reactions when they encounter iron, producing low-iron compounds, which may cause poisoning after people eat them. Do not use an iron pot to boil mung beans, because the tannins contained in the bean skin will undergo a chemical reaction when it encounters iron, generating black iron tannins, and making the soup of mung beans turn black, affecting the taste and digestion and absorption of the human body.

The iron pot is to make the iron pot become a non-stick pan, if the iron pot is not boiled, so that when stir-frying, it is easier to stick to the pan, and the feel of use is not very good, so the newly bought iron pot is generally boiled.

Boiling the pot is a necessary process, in fact, it is washing the pot, and using the word "open" is a bit ritualistic. It's like someone buys a new car and will warm the car, but the name is different.

After boiling, try to only use an iron pot to stir-fry, and start a new stove for stewing soup dishes, because the iron pot is not suitable for stewing food, and the effect is not as good as other pots.

If you want the iron pot to have a longer service life, at this time, you should immediately brush the pot with clean water, do not use steel wool balls or clean it, as long as you use clean water, and then put the pot back to the stove ** burning, so that the effect will be much better.

In daily life, the use of iron pots also requires Yang Guo. Raising a pot requires an oil film, and the oil film will become thicker when frying vegetables frequently, which is also the reason why the iron pot is better and better to use.

It is not recommended to use dish soap to brush the pot, you can choose to use clean water and bamboo brushes, so as not to hurt the oil film. The reason why it is not recommended to use an iron pot to stew food is to prevent the oil film of the pot from being destroyed, which can prolong the service life of the iron pot and make it easier to use.

The real manufacturers of iron pots include Supor, Aishida, Cooking Emperor, Joyoung, Midea, etc.

1. Supor.

Zhejiang Supor Co., Ltd. is a holding subsidiary of the French SEB Group, the largest R & D manufacturer of cookware in China and the second largest in the world, a leading brand of small kitchen appliances in China, and the first listed company in China's cookware industry.

2. Aishida.

Founded in 1978, Aishida Group is a large-scale state-level enterprise group with Zhejiang Aishida Electric Appliance Co., Ltd. and Shanghai Aishida Auto Parts Co., Ltd. as its core holding subsidiaries.

3. Cook the Emperor.

Cooking Emperor is a registered trademark of Zhejiang Cooking King, and was awarded the title of Zhejiang Famous Brand Product of Suimingze. Cooking Emperor, with national invention patents of health selenium iron pot, as well as China Maifan stone non-stick pot, primary iron ore cast iron pot and other series of healthy cooking utensils.

4, Joyoung. Joyoung Co., Ltd. is hereinafter referred to as Joyoung, formerly known as Shandong Joyoung small household appliances, Joyoung is a manned space kitchen development unit, for the Chinese space station space kitchen developed drinking water dispenser, hot air heating device, aerospace intelligent APP, etc., to provide food and drinking water for the astronaut crew.

5. Beauty. Midea Group provides satisfactory products and services to more than 400 million users around the world, important customers and strategic partners in various fields every year. So far, Midea has about 200 subsidiaries, 35 R&D centers and 35 major production bases around the world, covering more than 200 countries and regions.