How To Clean Your Rusty Knife in Kitchen?

How To Clean Your Rusty Knife in Kitchen?
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Sometimes the rust affects our favorite knives and white weapons. We show you a simple method for those edges to look like before on kitchen cleaning blog!

What are we going to need?

One onion


Steps to follow:

Step 1: Cut the onion in half.

Step 2: Pass the sugar-cut half.

Step 3: Rub the knife vigorously with this sugared onion. The rust spots will disappear.

Step 4: Rinse.

Tips to remove rust from knives

Although as we saw earlier this year there are many types of knives, steel knives are still the most common in our homes and, although they give good result have a problem, they oxidize quite easily.

The good news is that when that happens not all is loose and there are some tricks that work very well to remove rust from knives and leave them as new.

Tips to remove rust from knives

Salt and lemon

Moreover, no, this time we will not go with tequila. Simply insert the blade of the knife into lemon juice, let it act for a few minutes, remove it, rub over the stains with thick salt and dry well.


It is a question of greasing the sheet by anointing it with oil or by spraying it with oil spray – as for example, greasing the baking molds , then rub with a very fine sandpaper and finally clean very well with absorbent paper.

Lemon and bicarbonate

In this case we have to make an equal mixture of lemon juice with sodium bicarbonate until effervescence occurs, we smear well the blade of the knife to be cleaned with the bubbling mixture, let them act for a few minutes, we pass fine sandpaper over the stains and clean and dry well with absorbent paper.

So that you can see in much more detail how the last two tricks I have commented I leave you a video in which they are very well explained.

Maintenance of a knife or razor

All knives and knives need proper maintenance if we want to get their full potential out of it. The steel of the knives is of very high quality but all material corrodes with the time.

General tips for maintenance of your knife or pocketknife

  • Occasionally apply one or two drops of oil to the springs and joints of your blade or knife. This will facilitate opening and closing, prevent oxidation and reduce wear.
  • Clean the blade with a cloth moistened with oil to prevent corrosion, especially if there is a humid environment in your place of residence.
  • If the blade meets salt water or any substance for which it is not set, rinse it immediately with tap water, dry thoroughly and apply a light coat of oil.
  • If you are going to stop using your knife for a long period of time do not leave it in its holster. Leather causes moisture and can create holes in the blade.
  • Check the lock regularly to make sure it works properly.
  • Keep the mechanisms clean and away from the sand and dust.
  • Do not use your knife or pocket knife for functions for which it is not designed. Do not use blade to pry or handle as a hammer. You can break the springs and crack the blade.


Maintenance by type of knife or pocketknife



Regularly used knife or pocket knife:

This type of knife should always be kept sharp and clean. Dull knives can be more dangerous than a properly sharp one. After correctly cleaning the knife following the steps above, avoid touching the blade with your hands. Our body contains salts and acids that are harmful to the metal. Use a dry cloth, preferably cotton, every time you need to touch the blade.

After cleaning make sure to apply a light coat of oil, which will keep the metal free of rust.

Fixed blade knives:

Keeping your knife clean and dry, properly oiled and sharp. That is basic to prevent corrosion from possible damage. be sure to clean the blade and handle after each use. Do not soak the knife in water. A mild soap and water solution should remove dirt and dust that has accumulated during use. Avoid any type of detergent, such as dish soap or laundry soap.

Keep the knife dry. After cleaning or exposing it to humid environments, be sure to dry both the blade and the handle.

Keep the knife oiled. Fingerprints and wet weather are the main causes of leaf oxidation. We recommend applying a gentle layer of oil after each cleaning and even if, you will save it for a long time.

How to keep the knife properly sharp


As with a knife, there are four primary points: Keep your knife clean, dry, properly oiled and sharp. In the case of razors, dirt tends to accumulate in the opening and closing grooves. Carefully use a toothpick to remove any lint that builds up.

You can also use a jet of compressed air, but first make sure it is valid for this purpose, as they can use an accelerator that will damage the finish of your knife.

Be sure to keep the opening and closing mechanisms properly greased and that nothing can hinder the action of the blade.

Diving Knives:

We recommend that you use a knife specially created for underwater use and made for that purpose. If you are going to use a knife that is not dive specific, cleaning after each use is essential. Even titanium knives, most resistant to salt water, should be cleaned after each use.

Salt water is very corrosive; salt will eat any surface in a relatively short period. After each use, wash the knife with a good soap without bleach and hot water as soon as possible. Let the knife dry in the air and then apply a light coat of oil.

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