How to identify a poisonous iron pot How to identify a poisonous iron pot Iron pot

1.The cost of an ordinary iron pot is about 30 yuan, and a slightly better iron pot costs several hundred yuan. If you come to the market and see an iron pot lower than this, it is recommended not to buy it. This kind of iron pot is most likely a chemical iron pot, that is, a poisoned iron pot.

2.If the iron pot you see is a three-no (no factory name, no certificate, no production address) product, then it is recommended to give up this iron pot, it is likely to be a poisonous iron pot. It is recommended to choose a manufacturer with a large brand and a high reputation.

3.The iron pot you buy generally needs to be boiled first. If you smell a pungent smell when you burn the pot, it is generally an inferior iron pot, and it is likely to be a toxic iron pot made of chemical barrels.

4.Of course, we can also use a spatula or an iron tool next to it to beat the wok when we buy it. If the sound sounds dull, it may be a poor quality wok. A good wok sounds loud and crunchy.

5.Another characteristic of poisoned iron pot is that it is thin, generally only 1mm thick, or even less than 1mm thick.

6.Finally, poisoned iron pots often use another feature as a promotional selling point, and that is energy-saving woks. Because the pot body is very thin, the heat conduction is fast, and the energy consumption is low.

First, look at **, "cheap no good goods", you can't be cheap.

See if it belongs to the "three no products", these "poisonous iron pots" are generally shipped in second, third and fourth-tier cities, without the name of the manufacturer, no certificate, no production address, and the source is unknown. Therefore, before buying a pot, you should shop around, choose a shopping mall with a good reputation, and also choose a larger brand.

After buying a new pot and boiling it for a few minutes, it smells a pungent odor, and the pot is unusable, most of which contain toxic chemicals or industrial oils; The sound of high-quality iron pots is loud when struck, and the dull silence of inferior ones, you may wish to knock when you buy them. Rust stains on the iron pot are not necessarily of poor quality, but may be the reason for the longer time to be placed, because the iron pot that has been placed for a longer time is safer to use.

There is no manufacturer, and there is no certificate. The minimum price of 30 cm is 18 yuan, and some iron pots with a diameter of 30 cm are sold for 22 yuan, and some of them are sold for about 28 yuan, and the price of 32 cm is 25 yuan.

1. Smell and sound:Smell and sound are the main criteria to distinguish whether to buy a poisoned iron pot or not. If there is a pungent smell after buying the iron pot for a few minutes, it is most likely an industrial oil containing toxic chemicals, and such a pot cannot be used.

In addition, if the sound is dull when striking the iron pot, it is not a good pot. Generally, the sound of the iron pot is relatively crisp when it is struck.

2、**：The ** of the poisonous iron pot is at most twenty or thirty yuan, and some are even more than ten yuan. Generally, the cost of a normal iron pot is more than 30 yuan according to the material, and the complex process is more than 100 yuan.

Therefore, when buying an iron pot, you can also root ** is a good measure.

Precautions for the use of iron pots.

1. Use less detergent for brushing the pot: special attention should be paid to the iron pot when using it, the iron pot is easy to rust, so it is best not to use the iron pot to boil water and boil soup, so as to avoid the disappearance of the edible oil layer on the surface of the iron pot to protect 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.

2. Thermal insulation material wrapping: the iron pot will be rough when you first buy it, and it is normal for some unevenness and smoothness, but it will become smooth after a long time.

The so-called "toxic iron pots" are actually those pots with excessive levels of heavy metals such as lead, mercury and arsenic, which seriously endanger people's health. These pots often use discarded chemical iron barrels as raw materials, and there is no manufacturer, no factory address, and no certificate when they are produced, which is a veritable "three no" products. If these "poisonous iron pots" are used for a long time, they will damage the human nervous system and endanger health.

Let's take a look at whether the iron pot at home is this kind of pot, and throw it away if you find this kind of iron pot. When buying a pot, how to identify a toxic iron pot?

1. Look**.

The cost of poisonous iron pots is very low, and the price is generally not high, about twenty or thirty yuan, and some are even lower. According to the current **, the cost price of an ordinary iron pot is about 30 yuan, plus other added value such as technology, the price should be a few larger.

10. Hundreds of dollars. So remind everyone that "cheap is not good".

Second, look at the license qualifications.

Regular iron pots are generally marked with the manufacturer, factory address, contact **, production date, and certificate. If you don't have this information, you must not buy it, the "three no products" are unknown, the quality is low, and it is very harmful to the human body. It is best to choose a reputable shopping mall, a trustworthy brand, and then look at the quality of the iron pot itself to decide.

Third, look at the material process.

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, the process is simple and rough, the texture is light and thin, and the thickness is sometimes less than 1 mm. When you buy, you can tap the iron pot, the sound is loud and crisp, the high-quality iron pot is dull and silent.

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.

Fourth, look at the usage.

After buying a new pot, remember to dry boil for a minute or two, if you smell a pungent odor, most of them contain toxic chemicals or industrial oils, the quality is definitely not good, and you must not use it. If the heat conduction is fast, and the texture is thin and easy to deform, most of the quality is not up to standard, and it is easy to be damaged and cannot be used.

Poison, du, from birth to mother.

First name (1) Will. From the (like the grass and trees to the new), poisonous sound. Original meaning: poisonous weed breeding.

2) poisons; Poison

Chemicals in the environment, after entering the body under certain conditions, can have biochemical or biophysical interactions with the body, and then interfere with or destroy the normal physiological functions of the body, causing temporary or permanent pathological states, and even life-threatening.

Another detoxification: poison is the meaning of high concentration. Rationale:

Check "Saying Wen Jie Zi", poison: thick also. Harm to others is often born.

Vernacular text] Poisonous, thick, and harmful grasses grow everywhere.

The ancients were limited to their understanding, believing that poison was born from plants, and only said that it was harmful to the human body, so they interpreted poison as"harm"。But modern research has shown that certain natural gases and chemicals are also harmful.

The key is this"Thick"How to interpret the word. Thick, relative to the living body, refers to the thick taste, the concentration of harmful ingredients"harm"Concentrated. Poison if understood as:"Poly", anything is highly concentrated"Poisoning"。

When sunlight is gathered with a convex lens can set combustibles on fire, people say dog day sunlight"Poison"It's easy to understand. And say someone's gaze"Poison", one is to have a god, the other is to pay attention to the high concentration of vision, as if it can see through everything, and it embodies one"Poly"。If the resentment in the heart is highly concentrated, it will be done"**"or"Hate"Meaning.

So use"harm"To explain the poison is at least incomplete.

1. First of all, we must find out the reasons for the toxicity of the iron pot. First, the material uses a low-purity iron substrate with excessive heavy metal content, which is toxic and harmful to the human body, and some manufacturers even use the best waste chemical iron drum as raw materials. Second, the iron pot coating uses substandard raw materials.

2. How to identify a toxic iron pot. Ordinary people can't distinguish it on the surface, but they can be identified by the brand they purchased. At present, the lowest price of iron pots produced with better iron substrates is about 50 yuan, and the price of iron pots produced with high-purity iron substrates is generally more than 100 yuan.

The pot sold in the grocery store for about 20 yuan must be made of scrap iron barrels, otherwise it would not be so cheap.

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.

Hello dear. There are two ways to tell if there is a coating. 1.

The color of the inside and outside of the coated wok is not consistent. The inner and outer colors of the uncoated are basically the same, and there are local color differences. 2.

Pour a small cup of water into the pot, shake the pot body, the water does not shake in flakes (i.e., not as a whole), and there will be water droplets in the pot after the water is poured out, that is, the coated pot; The poured water shakes in the pot as a whole, the flow of water is in a regular shape, and there are no water droplets in the pot after the water is poured out, and most of them are uncoated pots.

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The most obvious feature of the poisonous iron pot: when the pot is boiled, it smells a pungent smell, which is generally an inferior iron pot, and it is likely to be a poisoned iron pot made of chemical barrels. In addition to this, there are a few other ways to distinguish the poisoned iron pot:

1. When buying an iron pot, knock on the iron pot with a spatula or iron tool next to it, if the sound sounds dull, it may be an inferior iron pot, and a good iron pot sounds loud and crisp.

2. When buying a pot, it is best not to be greedy for a small bargain, especially for some iron pots with no products (no manufacturer name, no certificate, no production address), it is recommended to give up this kind of iron pot decisively.

3. Another characteristic of many poisonous iron pots is thinness. Another feature of poisoned iron pots is often used as a promotional selling point, which is energy-saving woks. Since the pot is very thin, it conducts heat quickly and requires less energy.

Precautions for buying an iron pot.

Iron pans on the market generally have coatings to prevent rust during storage, and there is no standard for the selection of these coatings, many factories use industrial oil soaking to prevent rust, and some add some other chemicals to prevent rust (certainly not food-grade chemicals). The smell of the newly bought iron pan when it is dried is mostly due to these industrial oils and toxic chemicals.

The poisoned iron pot is an iron pot made of discarded chemical barrels as raw materials, which has been shaped and polished, and is soaked in industrial oil to prevent rust. Its process is simple and can be done in small workshops, but it is harmful to the body.

The above content refers to Encyclopedia - Poison Iron Pot.

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The toxic substances contained in the iron pot are mainly heavy metals lead and chromium, and in general, through the long-term use of iron pots with bad materials, as well as in the process of cooking acidic food, the surface of the iron pot is corroded, resulting in the release of heavy metals such as lead and chromium, and then contaminating the food. In order to test whether an iron pan is poisonous, the following methods can be employed:1

Direct observation: Observe the surface of the iron pot with the naked eye for obvious damage, scratches or rust, etc., if so, you need to carry out deep cleaning or replace the iron pot. 2.

Hot water method: Add boiling water to the iron pot, leave it for 10-15 minutes, pour out the water, and observe whether the color of the water changes. If the water wheel turns yellow or scum, the iron pot may contain heavy metals and needs to be replaced.

3.Acetic acid method: pour a certain amount of acetic acid into the iron pot, leave it for a period of time, and then observe the color of the acetic acid in it.

If the acetic acid changes color or there is a white or black precipitate on the surface of the iron pan, it means that there is a problem with the iron pan. 4.Metal Detection Instruments:

Using professional metal detection instruments to detect the iron wax spike section pot can more accurately detect whether the iron pot contains heavy metals. It should be noted that it is necessary to avoid the iron pot not being cleaned for a long time, clean it in time after use, and store it in a clean and dry place to reduce the corrosion and rust on the surface of the iron pot of the family. Dear, if my answer is helpful to you, please also give a five likes (in the lower left corner of the evaluation), look forward to your like, your efforts are very important to me, thank you for your support!