Can kitchen knives be reused with rust? Can a kitchen knife still work if it is rusty?

The main component of rust is ferric oxide, which has no direct harm to the human body. However, cutting vegetables with a kitchen knife with rust will stain the vegetables and meat with a rusty smell, which will affect the texture and taste of the cut vegetables and meat. Just sharpen the knife and you're good to go.

If the rust is not very serious, wipe it off with a cleaning steel wool ball and wipe it off with a scouring pad. If the rust is stronger, you need to use a fine grinding stone to polish it (grinding stones are generally sold in larger markets).

Yes. Rust is ferric tetroxide.

It is a mixture of ferric oxide and ferrous oxide.

The iron in ferric oxide is trivalent.

Poisonous. In ferrous oxide is ear bivalent.

It is necessary for the human body.

But it's better for you to erase it.

If it is not rusty, you can wipe the knife with a dry cloth after each use, and if you have cut something salty, wash it and wipe it dry with a dry cloth, then apply a little cooking oil or rub it dry with ginger slices.

If it has rusted, you can use sandpaper or metal cleaning balls to remove the rust from the knife, wash it clean, wipe it dry with a dry cloth, and then apply a little cooking oil. You can also use slices of radish and a little fine sand to scrub it, and the rust will be removed immediately. It can also be rubbed with cut shallots, and rust can also be removed.

Kitchen knives can be used with rust, but measures need to be taken to remove the rust. A whetstone or sandpaper can be used to sharpen kitchen knives and effectively remove rust. In addition, soaking in vinegar and rice washing water can also remove rust and make it shiny as new.

It should be noted that if the kitchen knife has rusted too badly, it is recommended to replace it with a new one so as not to affect the cutting effect.

<> kitchen knife can still be used if it is rusty, but the rusty part needs to be polished off, if it is cut by a rusty kitchen knife, it is easy to contract tetanus. You can use a whetstone or sandpaper to sharpen the kitchen knife to remove rust spots. It can also be soaked in vinegar and rice washing water, which contains acidic substances that can effectively dissolve rust and make it shiny as new.

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;

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". 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.

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

2.Rice washing water is rich in starch and can create 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 apply 100% tomato juice to rusty kitchen knives for quick rust removal. 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.