Does peanut oil have an anti rust effect?

OK. with peanut oil.

Isolate iron from contact with water and air to achieve the purpose of rust prevention. If you don't use it often, you can prevent rust in this way, because the peanut oil is worn off and loses the rust prevention effect.

OK. Peanut oil is light yellow and transparent, bright in color, fragrant in smell and delicious in taste, and is a relatively easy to digest edible oil. Peanut oil contains more than 80% unsaturated fatty acids (including oleic acid and linoleic acid.

It also contains saturated fatty acids such as palmitic acid, stearic acid and eicosanic acid. The fatty acid composition of peanut oil is relatively good, which is easy for the human body to digest and absorb. According to foreign data, the use of peanut oil can decompose cholesterol into bile acids in the human body and excrete them from the body, thereby reducing the content of cholesterol in the blood plasma.

In addition, peanut oil also contains sterols, wheat germol, phospholipids, vitamin E, choline and other substances that are beneficial to the human body. Regular consumption of peanut oil can prevent wrinkles and aging, protect blood vessel walls, prevent thrombosis, and help prevent arteriosclerosis and coronary heart disease. The choline in peanut oil can also improve the memory of the human brain and delay the decline of brain function.

Rust is actually the oxidation of metal, and rust prevention is generally done with oil or paint. Peanut oil is also oil, of course, it can prevent rust, but the cost is relatively high.

Some of the premise is to wipe it clean and oil first.

For a short time, you can, such as sharpening a kitchen knife, smearing a little peanut oil, and it will not rust quickly. When there is no engine oil, butter and other mineral oils as anti-rust oil, it is possible to temporarily use it to prevent rust and save metal items that are easy to rust, but it should not be used as a long-term anti-rust oil. Generally, vegetable oil will contain a small amount of water, and at the same time, they are mainly fatty acids that are easy to be oxidized and rancid, which not only cannot prevent rust in the process of rancidity, but also accelerate the oxidation process of metals and form rust spots.

Why does paint prevent rust? The main thing is that the paint reacts with oxygen in the air to form a hard protective film. Oils that produce a protective film are usually used with dry oils, such as tung oil.

However, peanut oil is not a dry oil, and it will not form a protective film on the metal surface, so it cannot play a role in preventing rust. Air can also corrode metal.

It's simple, you just need to use a scrub. Or wash with acetone.

Vaseline cannot be used as a rust prevention, it will be oxidized in the air, and the formation of organic acids will accelerate the corrosion of the iron surface, it will not form a protective film, and it will not dry. It is very inconvenient to occupy where to go.

I'm weird, why don't you buy anti-rust paint? Isn't that great? It's designed to prevent rust.

The use of oil to prevent metal rust that we often hear about is actually unscientific. Generally, oil is lighter than water, and when water droplets drop on the oil film, water molecules will pass through the oil film and enter the metal surface, causing the metal to rust.

The reason why anti-rust grease can prevent metal corrosion is based on the role of the "amphiphilic structure" of oil-soluble corrosion inhibitors in anti-rust grease.

When the anti-rust oil is applied to the surface of the metal parts, it forms a protective film of the oil layer with smooth finish (no exposed coating). The oil-soluble corrosion inhibitor in the antirust oil has a "biparental" structure, that is, it is composed of a hydrophilic polar group and a lipophilic non-polar group. The metal surface is also polar, and the corrosion inhibitor forms a tight, orderly, dense and directionally arranged adsorption layer on its surface, with the polar group adsorbed on the metal surface and the non-polar group inserted vertically into the oil.

Between the non-polar groups and the oil molecules in the corrosion inhibitor, due to the action of van der Waals force, the oil molecules are neatly arranged and interspersed between the polar molecules, so that the adsorption film is more compact and forms a protective film with mixed multi-layer layers. Thus effectively resisting the invasion of water molecules, oxygen and other media, and preventing the corrosion of metals.

For ordinary chemical oil, because it does not contain rust inhibitors, water molecules and oxygen can easily penetrate the oil film to reach the metal surface, causing rust. In addition, peanut oil is an unsaturated vegetable oil, which is easily acidified by oxygen in the air, and long-term use will accelerate the corrosion of metals.

The anti-rust period of petroleum jelly is much longer than that of peanut oil, but the effect is not good for long-term use, and it is generally okay within half a year. In order to achieve the purpose of long-term anti-rust, the anti-rust agent is generally added to the petroleum jelly to become anti-rust grease, but at present, this product has been rarely used, the main reason is that the oil film is too thick, the use cost is high, especially not conducive to the cleaning of metal products before use, therefore, it is replaced by the widely used anti-rust products such as thin layer anti-rust oil and vapor phase anti-rust materials. At present, anti-rust grease is still in the application of occasions, mainly concentrated in relatively backward technology of small machinery manufacturing enterprises, military enterprises or private enterprises.

The selection of anti-rust materials should be combined with the surface state of the product, the requirements of the anti-rust period, the surface state and use requirements, the metal material composition of the product and other factors. That is, it will not solve the problem, and it may also bring unnecessary trouble.

Peanut oil can prevent rust, but peanut oil has a fragrance and attracts insects.

Lubricating oil, engine oil, butter and so on can prevent rust, the key is not that the oil can prevent rust, but that the oil is not hydrophilic, after the metal surface is coated with oil, it isolates the contact between the water vapor in the air and the metal, so that the metal surface is not easy to oxidize. This is the reason for coating or painting on the surface of the metal, in order to isolate the moisture from contacting the metal material.

Oops, don't use peanut oil to prevent rust!! After a long time, peanut oil will be rancid!!

Of course, peanut oil can't prevent rust!!

You shouldn't be an industrial producer!

The easiest way to use degreasers in industrial production is to use alcohol, and you can also soak it in high liquor.

If you want to prevent rust, it is best to use a special anti-rust oil.

Because the application of cooking oil can form a film on the metal surface to achieve the purpose of rust prevention, but the metal surface must be free of impurities and dry before applying oil.

1. Plating a layer of metal that is not easy to rust by electroplating, hot plating and other methods on the surface of steel, such as zinc, tin, chromium, nickel, etc.

2. Use chemical methods to generate a dense and stable oxide film on the surface of iron products to prevent iron products from rusting.

3. Coating mineral oil, paint or firing enamel, spraying on the surface of iron products, etc. The machine is often coated with mineral oil, etc.

If soaked in oil, it can only be said that it is isolated from the air, and it can achieve the effect of rust prevention! It is recommended to use professional anti-rust oil!

Any brand of lubricant can be rust resistant!!

Good peanut oil, generally when the room temperature is lower than 12 degrees Celsius, will condense, no matter how low the temperature is, it will all condense, "but it can still be poured out", just like water will freeze at 0 °C, it is a physical phenomenon. Whether it condenses when the temperature is low is one aspect of testing the quality of pure peanut oil.

Peanut oil is a kind of oil, at the same time, compared with soybean oil, vegetable oil and other oils, peanut oil also has some inherent physical and chemical properties, one of the important and obvious characteristics is that peanut oil will solidify at low temperatures.

Peanut oil contains 20% saturated fatty acids and is rich in beneficial substances monounsaturated fatty acids, which are difficult to dissolve in ethanol, so they will become cloudy or even coagulated at lower temperatures (about 12 degrees Celsius). In addition, the solidification of peanut oil is a gradual process, after the temperature drops to a certain critical point, it first begins to condense flocculent precipitation, and with the decrease of temperature, it further forms a beautiful cream yellow, and the condensation state is fine crystals gathered together.

Food experts further said that in fact, seeing whether peanut oil is solidified is also one of the main ways to identify whether it is pure. In an experiment conducted by the testing agency, when the cooking oil was put in the refrigerator for 4 hours, if it was peanut oil, it would show a liquid solid form, while other vegetable oils would remain in their original state.

Peanut oil also needs to be kept warm.

After the peanut oil freezes, you just need to put it in a warm environment and it will return to its original pure state. If you want to speed up the thawing of peanut oil, you can put it in a warm, air-conditioned room and give it a moderate shake. Frozen peanut oil can be used normally after thawing, without affecting the taste and nutritional value.

However, freezing peanut oil is a troublesome thing after all, which will affect the ease of use. Therefore, in the weather with low temperatures, it is best to transfer the cooking oil to a warm place, which can effectively prevent it from freezing and facilitate its use.

Yes, bearing steel is slightly more corrosion-resistant than ordinary steel, but it is also easy to rust if it is not handled well.

And the bearing steel is not good for kitchen knives, it is too brittle, the bones may break, and the vegetables are fine.

It is recommended to use stainless steel, 2Cr13 for soft spots, and 3Cr13 for hard points.

It is okay to maintain kitchen knives with cooking oil, but they still need to be cleaned, wiped, and sharpened frequently.

It will not rust, but edible oil is a fatty acid, and it will oxidize over time, that is, it will be "greasy", that is, it will become a sludge that is difficult to clean.

Anti-rust method:

Moisture and air are the two direct factors that cause most kitchen knives to rust, and kitchen knife rust prevention needs to be countered to these factors.

After the kitchen knife is rusty, it must be sharpened to remove the rust, which can prevent a large area from corroding.

After cleaning the kitchen knife, it is best to wipe the moisture off the kitchen knife with a rag, especially for kitchen knives that are prone to rust.

When sharpening the knife, try to only sharpen the knife edge, and do not grind off the anti-rust layer of the knife body, otherwise it is easy to rust.

Cut non-fishy, sticky and greasy food, rinse the kitchen knife with water.

After each chopping and washing, apply a thin layer of cooking oil to the surface of the kitchen knife, or rub it with raw fatty meat.