How to Sharpen a Knife With a Mug

A sharp knife is a must-have in the kitchen. Dull knives can be dangerous to handle and are inefficient for cutting, chopping, and slicing food.

If you have a favorite knife that needs to be sharpened, then try using your mug! It’s an easy way to get the job done with minimal effort required.

This article will show you how to sharpen a dull knife using just your coffee mug and a few additional materials.

How to Sharpen a Knife With a Mug


To successfully perform the task at hand, you will need the following:

  • coffee mug
  • dish soap or other small kitchen cleaning product
  • kitchen towel or paper towel


Before starting with the process, keep the following in mind.

  • Sharpen with the edge of the blade facing away from you.
  • Holding the knife at an angle is not necessary as long as you are maintaining proper leverage and force.
  • Do not rush the process or you will end up with a rough edge. Remain patient and let the mug do its job.
  • Never use harsh chemicals that promise to sharpen a knife. You will end up damaging your tool.


Step Number 1. Start by filling the mug with water.

Step Number 2. Pour a small amount of dish soap or other household cleaning product into the cup and swish it around to create a soapy solution.

Step Number 3. Next, place your knife in the middle of the coffee mug near one side. The blade should be facing up towards you. Make sure that there is enough room for you to place your fingers on the other side of the handle.

Step Number 4. Pulling back with one hand, start moving your hands towards each other in a sawing motion while maintaining contact between the blade and mug.

Step Number 5. Repeat this action until you can feel that there is enough slipperiness to sharpen without scratching or damaging either object.

Step Number 6. Rinse your knife with water and wipe it dry.

Note: Dry off the blade completely before storing it.

Step Number 7. Repeat these steps as often as necessary until you are satisfied with the sharpness of your blade.

Step Number 8. Finally, make sure to store your blade in a sheath or knife block to avoid accidents.

Caution: Never store your blade in a place that is exposed to moisture like the dishrack. Exposure to moisture causes metal to oxidize and corrode which can lead to rust.

Frequently Asked Questions

How effective is sharpening with a mug?

Using the mug takes is not the best option. However, it is effective for blades with only minor chips or damage because it does not require any special equipment like honing oil and stones which can be expensive.

Can glass be used instead of a mug?

Glass is an acceptable substitute. Although it will not sharpen as well and can produce a jagged edge, the positive difference between using a mug or glass is that you won’t have to worry about breakage if there are any accidents.

Is it possible to sharpen with a bench grinder?

Bench grinders have thin metal that can easily be bent, warped, or cut by the blade which is not safe for sharpening. In other words, it is not safe to use for honing blades.

Final Verdict

The next time you need to sharpen a knife, try using your favorite mug. It might take some trial and error, but this is an easy way to save money on sharpening tools.

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