How to Remove Rust from Stainless Steel Knives?

Fact Checked By Luna L. Rusk | Last Updated on November 15, 2020
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Rust may appear in your set of high-quality stainless steel knives but it’s not the end of the road. With few tricks, you can repurpose those oxidized objects. Your kitchen knives need proper maintenance to avoid any rust over it.

The most common reason for rust on a kitchen knife depends on your cleaning process. You should never keep your kitchen knives in a sink or dishwasher. Always keep it in a dry place to avoid rust by proper handling.

Follow some easy methods to keep your valuable kitchen cutlery without rust. You don’t need to overthink to remove rust from your kitchen knives. Some common daily used cleaning products in your kitchen can help you out in this case.

Before getting into the main point, let’s learn how rust appears on kitchen knives.

How Rust appears on Kitchen Knives

The common reason for rust on kitchen knives is keeping it in touch with water for a long time. Oxidation of iron creates rust on kitchen knives over time. Any product or material that is made out of iron is vulnerable to rust.

Iron components in a metal react with oxygen atoms of the water. It later creates an iron oxide layer on the metal body which is known as rust. So, keeping your knives in water means inviting the rust.

Avoid making scratches or abrasions on your kitchen knives. It can also cause rust on your kitchen knives. Always try to keep your kitchen knives in a dry condition to prevent rust.

How to Remove Rust from Stainless Steel Knives?- Top Best Way

Rust us a common fact If you have kept the knives in any wet condition or damp places. Rust significantly decreases the outlook and effectiveness of a knife. With a little effort, your kitchen knife will get back to its previous effectiveness.


Wash out the dirt and oils from your kitchen knife before removing rust. Slowly clean it under warm water to avoid any kind of damage. After cleaning the knife, make it dry by wiping it with clothes.

Avoid keeping any fingerprints because natural salts of your body can cause rust. Last but not the least, keep it in a dry place after washing it with warm water.


It may sound surprising but it is true that potato is a natural rust remover. Potato includes oxalic acid that helps to omit rust from kitchen knives.

Stick the knife inside a potato and leave it for 8 to 12 hours to get the result. Finally, remove the knife from the potato and wipe out or scrub the rust.

Lemon Juice

Natural lemon juice contains acid that weakens the rust on knives which you can wipe or scrub out. Pour some fresh lemon juice on the glass and keep your rusty knife inside the juice. After 5 to 10 minutes, the rust will come out of the knife depending on the level of the rust. 


Vinegar is a common household item that is non-toxic and useful for removing rust from a knife. 

Fill up a glass with apple cider vinegar or normal vinegar and place your rusty knife inside it. Keep it soaked inside the vinegar for 8 to 12 hours and then wipe or clean away the rust.

Baking Soda

Baking soda is the most commonly found item in every house around the world. Make a mixture of baking soda and water which will turn into a sticky paste. Apply the paste on the kitchen knife and rub it slowly with a non-abrasive sourcing pad to remove the rust.

Bar Keepers Friend

With this product, you can clean any metal surface with ease. Apply some powder on the rust spots of a knife and rub the spot with a damp cloth.

You can make a sticky paste out of this product by mixing water and use it in a prolonged rust area. After applying the paste on the rust, wait for 20 to 30 minutes and wipe it out. You can completely remove the rust from your knives by repeating the process if needed.

Non-Toxic Rust Remover

Hardware and auto parts stores sell non-toxic rust removers that can remove rust. Non-toxic solutions such as Evapo-rust can remove rust from any metal surface. These chemical solvents are non-toxic and harmless compared to acid-based chemicals.


You can use protective components to prevent rust from your kitchen knife surface. One great idea is to apply a small amount of mineral oil by using a soft cloth. Another great option is to apply paste wax or WD-40 in your kitchen knives.


Use an old unused toothbrush to remove rust that is not extreme. Get some dish soap, apply it on the brush, and scrub the surface of your knife. After scrubbing for a few minutes, rinse the knife and clean it with a dry cloth.

Magic eraser sponge

Remove rust from your kitchen knives using a magic eraser sponge. You don’t need to apply any kind of chemical in the magic eraser. Just apply some water on the magic eraser and use it to wipe out the knife.

Prevent Rust Before It Ever Starts

You might be thinking how to keep your kitchen knives always rust free and shiny. Rust is mainly formed due to water in a metal object. So, after every use, wipe it with a dry cloth and keep it in a dry place.

Don’t throw your knives on the sink or avoid keeping it in a dishwasher. Keep it in a rack that is specified for keeping knives. Also, keep it in a place with low humidity and is not damp.

You may have to visit the shop to get a new set if your knives are full of rust. You can follow our mentioned methods to remove rust from your kitchen knives.

Sometimes your knives may need a touch of the professionals due to the extreme formation of rust. They can revive the knives to its previous shiny and workable condition but it will cost you.

The best way is to stop the rust with proper maintenance even before it forms on your knives. Wipe it with a clean and dry cloth and hand dry them after every use.

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