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How to Sharpen a Pizza Cutter

By Robert Parsons May 5, 2021

Pizza cutters are useful accessories used within one’s kitchen. With time, the blade will naturally run dull. When this happens, don’t toss it! Instead, learn how to sharpen it yourself. This will save you a trip to the store, not to mention you’ll have your pizza cutter for years.  

In this guide, I’ll go over how to sharpen a pizza cutter rotating blade. Knowing when to sharpen this tool is half the battle. You also need to make sure you’re sharpening it properly for your safety and as to not damage the rotating blade. 

I’ll cover this and more here!

sharp pizza cutter

Taking a Closer Look at the Pizza Wheel 

Take a look at your pizza cutter’s wheel. You’ll notice a single surface that has been ground down at an angle. This forms the cutting edge and is the surface you’ll be sharpening. There are many ways to sharpen pizza cutters. The methods used must check off two things: 

  • – It should be simple. 
  • – It should be quick.

My next three methods are simple, quick, and can be done by absolutely anyone! Always remember to wear protective gloves and proceed with caution.

Method 1: Pizza Cutter Sharpener 

This is the easiest and probably quickest way to sharpen your pizza cutter. It’s great if you make pizza often and don’t want to replace your cutter every few months. 

A pizza cutter sharpener works like a knife sharpener. However, it’s specially designed to work for rotating blades like those found on pizza cutters. To use this sharpener, you need to place it on a flat surface and then run the pizza cutter through the sharpener. Repeat this process until the blade reaches the sharpness you desire. 

I like this tool because it gives you easy sharpening access. Some users even like to sharpen their tool to give pizzas that smooth cut. 

If you don’t have a pizza cutter sharpener, no worries. Read on for two other simple methods.

Method 2: Use a Whetstone 

This is my favourite way to sharpen knives especially since whetstones may already be found in your kitchen to sharpen knives. I applied the same method to sharpening knives to my pizza cutter and found it to be very successful. 

To sharpen your pizza cutter using a whetstone you’ll need: 

– Whetstone

– Protective gloves

– Polishing compound

Step 1: Prepare the Blade 

To use, you’ll want to begin by gripping the blade and centre of the wheel very tightly. This will prevent it from rotating while you’re sharpening it. Always wear gloves for this step. Wet the blade with cold water. 

Step 2: Apply the Whetstone 

You need to sharpen the blade from the inside out. Hold the blade wheel at a 45-degree angle and grind the cutter against the whetstone. Make sure to wet the blade often and keep the pressure balanced each time you rotate it. Otherwise, you run the risk of the blade becoming uneven. 

Step 3: Add Some Shine 

After you’re done sharpening, you’ll want to apply the polishing compound with a cotton cloth. This will remove any scratches brought forward by the whetstone. 

Before you test out your freshly sharpened pizza cutter, wash it thoroughly! If you missed any spots, wet the wheel and repeat the process. 

Method 3: Use a Diamond Sharpening Stone 

Another great sharpening tool is a diamond stone. Just like the whetstone method, it’s very simple and quick. Because of its flatness, you’ll easily be able to sharpen the angled blades of pizza cutters. 

How to sharpen a pizza cutter using a diamond sharpening stone? Begin by gathering the following materials: sharpen pizza cutter 

– Diamond sharpener

– Protective gloves 

– Polishing compound

Step 1: Take the Pizza Cutter Apart 

If your pizza cutter has a handle, you can likely take the wheel apart. Removing the blade will be the easiest way to work with a diamond sharpener since it’ll be easier to hold it at an angle while using.

Step 2: Grind the Blade 

When comparing a diamond sharpener to a whetstone, it’s easier to use because with diamond sharpeners, you’ll be able to easily grip the blade. This offers an even result. 

Sharpen the blade inside out. Remember to retain the angled shape of the blade as you apply pressure. Go counter-clockwise and then clockwise for the best results. 

Step 3: Time to Polish 

After sharpening, wash the blade. Now you’ll want to reinstall the parts. Dry it with a cotton cloth and then polish it using the polishing compound. This will add shine and remove any scratches caused by the diamond sharpener. 

Pro Tip: To prevent future rusting, lubricate the wheel after sharpening. This will also add a smoother feel during use. 


And there you have it! Now you know how to sharpen your pizza cutter to regain its original shape. You can use these methods as often as you’d like, however, I recommend only doing so when the blade is running dull. One last time, while these methods are quick, simple, and effective, you always want to be sure you proceed with caution.