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How To Sharpen Ceramic Knives? (Explained For Beginners)

Ceramic knives are very popular among professional chefs and home cooks. If you own one or just about to purchase one, the thought of how to sharpen ceramic knives must have crossed your mind. I will show you how, stick with me to find out.

While it has a super sharp edge which helps a lot for easy cutting and slicing jobs. It also has some other features which aren’t available with other regular kitchen knives. So it is great for cutting and slicing jobs, but not ideal for other heavy jobs.

What is a Ceramic knife?

Made of Zirconium dioxide, also known as Zirconia, ceramic knives are a useful tool to have in the kitchen. The knife is called so as the blade is forged out of ceramic. Ceramic knives are produced by dry-pressing and firing powdered Zirconia using sintering in a solid-state. They are more durable compared to the other knives due to the hard edge blade.

Ceramic knives are comparatively harder than steel and other knife materials. Being durable, nonmagnetic, they don’t conduct electricity at room temperature. Unlike the traditional knife, a ceramic knife does not need regular honing and sharpening as it can retain its sharpness longer.

What is a Ceramic knife used for?

The ceramic knives are perfect for slicing boneless meat, vegetables, bread, and ice. The blades are perfect for achieving thin slices of food without bruising the fruits and vegetables.

Some of the other benefits of using a Ceramic knife:

  • Do not rust
  • Stay sharper for a longer period as compared to steel knives
  • Doesn’t make food brown; let them stay fresher for longer
  • It doesn’t get affected by acids and juices
  • Never bruises the soft food items
  • Doesn’t leave a metal-like taste as the steel knives do

Is it possible to sharpen a ceramic knife?

 sharpening ceramic knife

For few regular users and many intending buyers, the pertinent questions that constantly pop up are: how can I sharpen my ceramic knife? Can a ceramic knife be sharpened? And, are there differences between the ceramic knives?

Do note that there are also some positive and negative aspects, as ceramic knives perform pretty well for lightweight works like slicing, dicing, and mincing. One of the best features of ceramic knives is that it has a beautiful white blade that provides razor sharpness.

But, there are some drawbacks if you compare them with the steel knives. For example, a ceramic knife can’t perform well for hard usage like frozen food! But great at other kitchen tasks in a fast and easy way.

Moreover, the weight of the knife is much lower than other knives. Many regular users say they go for it due to its convenience. Also, whenever it goes blunt, it can be easily sharpened using some tools and techniques I will discuss below.

What is the best way to sharpen a ceramic knife?

There are many tools and methods available for sharpening chef and other kitchen knives, but only a few methods are effective for sharpening a ceramic knife. From experience and thorough research, here are the most effective 3 methods for sharpening a ceramic knife.

If you follow these steps carefully, you can easily make your knife razor-sharp. But, never try to sharpen your ceramic knife with the wrong tool as it can damage your knife completely. Without delay let’s see which tools and methods are best for sharpening a ceramic knife.

01. Electric knife sharpener

how to sharpen ceramic knives

Most people know the electric knife sharpener is an ideal choice to sharpen any kind of kitchen knife. This sharpening system gives you the best safety compared to other sharpening methods. Most electric sharpeners have a diamond abrasive setting, that will restore your knife’s previous sharpness. Also, it has a tendency of making it look new.

Fortunately, it is very easy to use an electric sharpener.

  • Simply hold your knife in one hand and hold your sharpener in your other hand
  • Remember to put the sharpener in a secure place so that it can’t move
  • Then, hold the blade in the grinding section and slowly pull back against the grindstone
  • Do not go above 4 to 5 times

Finally, check the knife sharpness using paper or a tomato. If your knife can easily cut the paper without much effort, that means your knife reached enough sharpness. If it doesn’t, it seems your knife has lost its edge, you can apply this method 2 or 3 times again.

I recommend the Kyocera Advanced ceramic knife sharpener. Because it is specially made for handling ceramic knives. And, it has a high-quality Diamond #600 Grade grinding stone that can handle up to 0.5mm blade.

02. Sharpening rod

 sharpen ceramic knives

This sharpening method may not be as convenient as electric sharpeners. But it is very effective, especially for ceramic knives. Because most ceramic knife sharpening rods are made from industrial-grade ceramic.

They also feature alignment steel which ensures a perfect ceramic knife sharpening. However, if you already own Diamond sharpening rods. you can sharpen your knives carefully on them, as it’s great for sharpening knives.

For new users and regular ones who wish to do better at sharpening their ceramic knives, here is a simplified way to go about it:

  • First, hold the sharpening rod and point the surface down, using your left hand
  • While you are at it, use your right hand to slide/cross against the rod. for the first time go 90°.  Then 45° for final sharpening
  • Do this 4 to 7 times on both sides

If you are not satisfied with the level of sharpness, you can apply a 22° sharpening angle. It will give your ceramic knife a super-thin edge for effortless cutting.

You can also check the sharpness through a tomato or paper. If you need further clarification on how to sharpen ceramic knives using a sharpening rod, check this video.

03. Work Sharp knife & tool sharpener 

how to sharpen ceramic knife

If you have a lot of ceramic blades or kitchen tools then a Work sharp Knife & tool sharpener would be an ideal choice for you! Although, it does not come cheap when compared to other sharpeners.

But to be honest, it can handle all your kitchen knives like steel knives, santoku knives, ceramic knives, chefs knife, scissors, and other related kitchen tools. This extra sharpening feature hasn’t been installed on other sharpening machines. This makes this particular one an all-rounder in sharpening tools.

You may think this is complicated to use, but it’s not. Rather, the operation mode is very easy for experienced ceramic knife users as well as first-timers. It has a great sharpening measuring guard which ensures you’ll get a perfect sharpening.

What more? this machine has a small belt that has a diamond abrasive micro coating which will make your knives wicked-sharp.

Here is how you can sharpen ceramic knives using this sharpener.

  • First, you need to lay a towel or a small cloth and put the sharpener on the surface
  • Then, insert your ceramic knife into this machine, and hold the sharpener with one hand while using your other hand to slide
  • Slowly slide the blade on the abrasive belt a maximum of 5-6 times
  • While you are at it if the abrasive belt doesn’t have enough sharpening coating, simply change it and add a new one for higher grit

Continue to slide your blade on both sides until you feel a satisfactory sharpness. Like other methods, you can also check the sharpness using paper.

If the knife cuts the paper easily that means it reached enough sharpness. Here is a video that further explains how to use the Work sharp Knife & tool sharpener.


The good thing about learning how to sharpen a ceramic knife is that, with time: you will get to know what works best for you. Ceramic knives are very special and rare compared to other common chef knives.

It has a lot of great features and performs very well. To get the best benefit out of it, use it for any lightweight use. Barring that it is quite hard to sharpen. Because the ceramic knife blade does not come from common materials, you have to find out the most effective ways to achieve a good edge.

Aside from the aforementioned methods, you can also apply a different method that fits your sharpening needs, using these tool sharpeners.

All things considered, I hope this ceramic knife sharpening guide helped you provide a satisfactory answer on how to sharpen your ceramic blade. Be safe while at it, and always clean your ceramic knife after each usage.