The kitchen knife at home is rusty, how to take care of it to look new?

The kitchen knife at home is rusty, first of all, we need to understand why the kitchen knife is rusty, so that it can avoid such a thing according to the situation.

Causes of rusty kitchen knives:

Here is an example of a kitchen knife as a sticker. The reason why iron rusts is because it comes into contact with "water and oxygen" at the same time. This is the basic reason.

Going deeper, there are two types of rust: one is "hydrogen evolution corrosion" and the other is "oxygen absorption corrosion". It is a chemical reaction that is essentially an oxidation reaction of a metal.

The most common phenomenon of rust is that iron products are oxidized by long-term exposure to air and oxygen, or are eroded by oxygen in water to become oxides. To remove rust, you can shovel it off with various tools or soak it in an acidic solution to dissolve it. After removing the rust, the surface of the iron must be treated, coated with a layer of lead, and then painted; Or plating it with other metals that don't rust easily.

A more radical approach is to add some other metals to the iron to make a stainless alloy. The stainless steel we are familiar with is an alloy made by adding a little nickel and chromium to the steel.

After cutting fruits, kitchen knives rust and tend to corrode by hydrogen evolution; After being dipped in salt water, it tends to be corroded by oxygen absorption. There is oxygen in the air, and the kitchen knife is generally in the air, and it is not good to put it into a vacuum after using the kitchen knife, which is not very reasonable, and the method is too clumsy, so the following methods are mainly to separate the kitchen knife from water, and the method is as follows:

1. If the surface of the kitchen knife is rusty, you may wish to wipe it with fresh radish slices or potato slices dipped in a little fine sand, or you can use cut shallots, which can make the spots of rust fade.

2. Rice washing water is rich in starch, which can produce a protective film on the iron knife. As long as the whole kitchen knife is soaked in rice washing water, soaked for 2 hours, and then wiped dry, the kitchen knife can prevent rust.

3. Or you can use 100% tomato juice to apply to the rusty kitchen knife, which can quickly remove rust. Apply the tomato juice to the knife first, and after a few minutes, rub it again with a rag dipped in the tomato juice to remove the rust.

It is possible to buy specialized whetstones. If the kitchen knife at home is rusty, you can sharpen it with a whetstone and apply some care oil for the kitchen knife to make the kitchen knife look new.

If the kitchen knife at home is rusty, you can use a steel wool ball to gently polish the kitchen knife to polish off the rust or use a whetstone to sharpen the knife to grind off the rust on the knife body.

You can sharpen your knife, you can also use carrot slices and add a little sweet potato slices, and fine sand can also be removed. Cut, tomatoes can also be removed.

1. Some foods can be rust removed. Scrub the blades with potato or radish slices and a little fine sand to remove rust. You can also insert a rusty knife into the potato for a few hours, remove it and then wipe it with a rust removal solvent, and the rust will be removed quickly.

The same goes for onions, where rusty knives are constantly grinding on the cut surface of the onion, and the rust will be removed inadvertently.

2. Rice washing water can also remove rust, and its acidity can wash off the rust on the knife very well. Immerse the rusty knives in the relatively thick rice washing water, and scrub them with a wire ball with the lift of the bucket ball. Of course, some expensive knives should not try this method.

3. Toothpaste rust removal. Squeeze the toothpaste onto the surface of the knife to ensure that it completely covers the rust spots, leave it for more than three hours, and then wipe the surface of the knife with a rag. When encountering stubborn rust spots, it needs to be wiped repeatedly.

4. Soda rust removal. For knives with less severe rust stains, you can use a toothbrush dipped in soda to gently wipe it. For serious rust stains, you need to wipe off the rust stains on the surface of the knife with barbed wire first, and then wipe it with Su Luran water.

5. For silver knife rust, wipe it with toothpaste to make it as bright as new. The copper knives that are easy to oxidize and rust can be used with 160 grams of fine wood chips, 60 grams of talcum powder, 240 grams of wheat bran and together, pour 50 grams of vinegar, mix into a paste, apply it on the copper surface, and after drying, the patina can be removed.

Kitchen knives are often used and come into contact with ingredients and water, and if they are not properly prevented, they will cause rust.

There are a few tips to keep kitchen knives from rusting.

The first trick is to wash rice water to remove rust.

Everyone is familiar with rice water. We wash rice every day, but everyone pours it directly after using up the rice washing water, but we don't know that the rice washing water has the effect of removing rust. We only need to soak the rusty kitchen knife or rusty iron products in the rice washing water, soak them overnight and then take them out, and we will find that the rust on the kitchen knife or iron products has magically disappeared.

This is because rice washing water is rich in starch. If the kitchen knife at home is rusty, you can try this method.

The second trick is white vinegar to remove rust.

White vinegar is a common condiment in our lives, but its role is more than just a seasoning. Because most of the rust on iron products is oxide, white vinegar contains acetic acid. It can react chemically with rust.

The rust then breaks down. We can soak iron products in white vinegar for one to two hours. When you take it out later, you will find that the rust on the iron product is gone, so that the rust can be effectively removed without much effort.

The third trick is to remove rust from cork.

Nowadays, red wine is becoming more and more popular, but after drinking red wine, don't throw the cork on the bottle, it can remove rust. First, we sprinkle some decontamination powder on top of the kitchen knife, and then put the ginger cork in the water to soak it thoroughly. If you put it directly on the kitchen knife and rub it on the field, you will find that the rust on the kitchen knife is gone after a few minutes, and the effect is very good.

From the daily point of view, the kitchen knife bought is rarely rusty, and the Qing Roll is made unless you buy a relatively inferior one; In addition, the surface protection of your kitchen knife has been damaged during use, causing the iron inside to be exposed to the air. At present, the best way to argue is to change to a better one, and to use a whetstone to grind it off;

1. Rice washing water soaking method: the main thing is to put the kitchen knife that has rusted into the rice washing water we have prepared to soak it for about an hour, and then take out the kitchen knife and wipe the water stains on it. If the rust removal is not very thorough, you can place the kitchen knife in the rice washing water and continue to soak until it is completely removed.

2. Potato or radish scrubbing method: use cut potato slices or radish slices, stick some fine sand and water, and then you can directly rub the rust on the kitchen knife, and after a while, the rust can be gone.

3. Onion wiping method: cut the bought onion into a slice, and then you can directly rub the rust on the kitchen knife.

4. Tomato scrubbing method: Cut the tomato in half or use a 100% tomato juice to scrub the rusty place on the kitchen knife, you can quickly remove the rust.

5. Salt water wiping method: use an appropriate amount of salt, add a little water, and then wash and wipe the rust on the kitchen knife can also play a role in removing rust.

In fact, it is not necessary to carry out the kitchen knife after rusting, as long as the maintenance work is done before the rust, the kitchen knife is not easy to rust, such as cleaning and drying the kitchen knife after use, and applying a layer of cooking oil on the surface of the kitchen knife if it is not used for a long time to isolate the air, which can also play a good anti-rust effect.

1. Rice water: First prepare a basin of rice water, then soak the kitchen knife in the rice water, brush the rusty kitchen knife with a steel wool ball to easily remove the rust, and finally wipe it with a kitchen rag.

2. Onion head: Cut the onion head in half, use half of it to rub directly on the kitchen knife, and use great force to wipe off the rust on the kitchen knife.

3. Potatoes and radish: Use cut potato slices or radish slices, dip some fine sand and water, and rub directly on the rust to remove the rust.

4. Tomatoes: Scrub the rusty area with cut tomatoes to quickly remove rust.

5. Cork stopper and decontamination powder: sprinkle the surface of the rusty kitchen knife with dirt powder, then wipe it with the cork plug dipped in water, and wipe it back and forth on the kitchen knife with the cork, and the rust will generally be cleaned up.

Expand the knowledge: how to prevent kitchen knives from rusting

1. After using the kitchen knife, we should wash it with clean water, and then wipe the water on the kitchen knife with a dry towel, because water is a necessary condition for rust. Without water, there will be no rust.

2. Put a small amount of quicklime and an appropriate amount of water into a container, soak the sharpened kitchen knife in lime water, take it out when using, and put it back into the lime water after use, which can also prevent the kitchen knife from rusting. This is to avoid the iron kitchen knife from coming into contact with the air.

3. After each use of the kitchen knife, wash it with water, and then carefully wipe the sides of the kitchen knife with a piece of ginger. This method not only prevents kitchen knives from rusting, but also sterilizes.

4. After the kitchen knife is used, it can be soaked in light salt water to generate iron oxide. The surface of the kitchen knife has a protective film, so it is not easy to rust. However, this method is not practical because once the knife is sharpened quickly, the protective layer will fall off.

5. If the kitchen knife is not used for a long time, you can apply a layer of cooking oil on the surface of the kitchen knife, which can isolate the air and prevent rust.

The above is today's sharing, I hope it can help you.

We all need to chop vegetables when cooking, and kitchen knives are one of the must-have utensils in our kitchen. The quality of the kitchen knife also determines whether the appearance of the dish is good enough. I believe that many people have encountered the problem of rusty kitchen knives, if the kitchen knives are rusty, and continue to use them, it will not only affect the quality of cutting vegetables, but also increase the possibility of cutting to hand.

So how do you want the menu to be less rusty? Next, I will introduce a few methods to teach you how to make the washed kitchen knife not easy to rust.

What a messMethod 1:

If we want to prevent kitchen knives from rusting, then we need to wash them after each use and wipe them dry, because water vapor will make kitchen knives rusty.

Method 2:

We use a small amount of quicklime and an appropriate amount of clean water, put it in a container, soak the polished kitchen knife in lime water, take it out when you use it, and put it in when you don't use it, which is both clean and can prevent rust. In addition, boiling water after each use can also prevent rust.

Method 3:

After each use of the knife, wash it with water first, and then use a piece of old ginger to carefully wipe both sides of the kitchen knife, this method can not only prevent the kitchen knife from rusting but also kill bacteria. After using the kitchen knife, you can soak it in light salt water a little, so that ferric tetroxide can be generated, so that there is a layer of ferric tetroxide on the surface of the kitchen knife, and it is not easy to rust.

Method 4:

If the kitchen knife is not used for a long time, then you can apply a layer of cooking oil on the surface of the kitchen knife, which can play the role of isolating the air and play a role in preventing rust.

The above is a specific solution to how to make the washed kitchen knife not easy to rust, I believe you can learn it soon through the understanding of the above content.