How To De-Rust And Sharpen An Old Knife Like A Pro

If you have an old knife that has lost its shine due to rust and dullness, fear not! With a little effort and the right techniques, you can restore its former glory and reveal a beautifully shiny blade once again. Reviving an old knife not only brings back its aesthetic appeal but also enhances its functionality, allowing you to enjoy its performance in the kitchen.

To de-rust an old knife, start by thoroughly cleaning it with warm, soapy water to remove any dirt or debris. Next, carefully examine the blade for rust spots. If you spot rust, gently scrub the affected areas with a soft-bristled brush or a scouring pad dipped in vinegar or lemon juice. These natural acids help to dissolve the rust without causing damage to the blade. Rinse the knife thoroughly and dry it completely to prevent further rusting.

Once the knife is rust-free, it’s time to sharpen the blade. Sharpening an old knife requires patience and precision. Start by selecting the appropriate sharpening tool, such as a sharpening stone or a honing rod. If using a sharpening stone, wet it with water and hold the knife at the correct angle (usually around 20 degrees) against the stone. With consistent, controlled strokes, glide the knife across the stone, alternating sides, until you achieve the desired sharpness.

For honing, hold the knife at a slight angle against the honing rod and gently slide the blade down its length, applying light pressure. Repeat this motion several times on each side of the blade.

Throughout the process, remember to be cautious and maintain a firm grip on the knife to prevent accidents. Safety should always be a priority when handling sharp objects.

With patience and careful execution, you can transform an rusty knife into a shining beauty once again. Embrace the satisfaction of seeing the rust disappear and the blade regain its sharpness. Your revitalized knife will not only be a pleasure to behold but will also make your culinary adventures more enjoyable and efficient. Give your old knife a new lease of life and let it serve you with renewed vigor in the kitchen.

Watch an old knife getting a new life

We stumbled upon this video and we had to share it. This video is not only relaxing and somehow..satisfying, but also demonstrates perfect sharpening tricks.
At the start, the knife looks to be in pretty bad shape (lightly saying). It’s spotted, stained and totally rusted, but with a little tender, love, and care, the steel is coming out shining, sharp and beautiful once again.
The high carbon steel used in Japanese chef knives can be susceptible to rust when used with things like fresh fruit but in this case, the rust didn’t settle in too deep on the steel. We can’t emphasise enough how important are those tips:

  • Don’t put your knife in a dishwasher, ever.
  • Store your knives either on the magnetic knife strip, knife block, or sheathed in the utensil drawer.
  • Don’t slide your knife, blade down, across the cutting board to clear away what you just chopped.
kitchen stands luxury premium magnetic wooden stands japanese knives
Our premium magnetic kitchen knife stand available in dark walnut or natural oak is functional and a beautiful addition to your interiors.

Watch this deeply satisfying video and comment below:

Subscribe to get cooking tips and fascinating stories around Japan.
Get 5% off your first order:

You may want to read...

All About Cooking Knives

A coarse, dull cooking knife makes your kitchen efforts wasted and you struggle instead of enjoying the process of cooking.