How To Sharpen Ceramic Knives: Useful Tips And Tricks

sharpened ceramic knife

If you have ever wondered how to sharpen ceramic knives, you are not alone. These kitchen knives are very difficult to sharpen and can be even more of a hassle to keep sharp over time. That leaves many consumers wondering why they would even want to purchase a kitchen knife that is nearly impossible to sharpen once it becomes dull.


While they may not be widely popular, ceramic knives have shown up in many convincing advertisements in recent years, claiming that they are a great alternative to steel knives. While the verdict may still be out on that claim, we have found a way to effectively sharpen ceramic knives so that you can continue to enjoy them once they become dull.

How To Sharpen Ceramic Knives And Why These Knives Are So Beneficial


Before we get into how to successfully sharpen a ceramic knife, it’s important to understand exactly what a ceramic knife is and what their benefits are.


Ceramic knives have become popular recently because they are affordable, lightweight, and very sharp. The sharpness of these blades is the main focus of their manufacturer’s marketing strategies.


They are meant to be wear-resistant and can slice through all types of food effortlessly. The ceramic knife is said to be the alternative to stainless steel or carbon steel knives. And many people believe that they can never become dull simply because of the material the blade is made from.


But as many owners of ceramic knife sets have come to realize, the “always-sharp” blades can indeed become dull over time.


Ceramic knives may live up to the hype and provide you with an incredibly sharp blade that cuts precisely, but once the blade becomes dull, the knife is practically useless. Since the manufacturer’s promise that the ceramic blades will remain sharp forever, they didn’t come up with a way to actually sharpen the knives.


Fortunately, there is a way to effectively sharpen ceramic knives so that you can continue using them and enjoying the benefits of these innovative kitchen tools.

What You Need To Know Before Buying Ceramic Knives

Since the concept of ceramic kitchen knives is still new to some of us, there are a few things that you should know before you go out to buy your first ceramic knife set.

Ceramic Knives Do Have Blades Made From Ceramic Material

While it may seem obvious to some, others may find it hard to believe that a knife blade can be made from ceramic material. However, this isn’t the same type of ceramic that is used for creating figurines and coffee mugs.


The most common ceramic material used for knife blades is zirconium oxide or zirconia. It is a very hard material that is actually harder than stainless or carbon steel. It doesn’t rust, and it doesn’t absorb smells which makes it a great choice for kitchen cutlery.

Ceramic Knives Really Are That Sharp

You may have seen ceramic knives at your local retailer and thought that they looked like cheap plastic knives. But they are actually very durable and very sharp. They can stay sharp for a long time and you can prolong their sharpness by taking good care of them. Yet, they do become dull and that is one of the downsides of these knives since they are so tricky to sharpen.

You Shouldn’t Use Ceramic Knives To Replace Your Current Cutlery

Those who have used a ceramic knife can tell you that it is not a replacement for your chef’s knives. They are ideal for cutting through cold butter or precisely chopping fruits and vegetables. However, if you are looking for an all-purpose kitchen knife, you shouldn’t depend on ceramic cutlery for that purpose.


These knives are great to have as an alternative to your current set of cutlery and they may perform better at certain slicing and dicing tasks than your stainless-steel knives. But they shouldn’t be used to replace your favorite all-purpose knife.

The Best Way To Sharpen A Ceramic Knife

If you are still wondering how to sharpen a ceramic knife, here are some useful tips and tricks.

What Type Of Stone To Use

knife with sharpening tools

First, you will need to have a sharpening tool that is recommended for use with ceramic blades. While you can use other types of knife sharpeners, diamond stones are a great choice for this specific material.


If your ceramic blade is damaged, you should use a 200 grit diamond stone. Then you can move on to a 600, 1000 and eventually a 1500 grit diamond stone.


Traditional water stones or sandpaper can also be useful when sharpening ceramic, but for the best results, you should stick with diamond stones.

How To Sharpen Ceramic Knives

sharpening a ceramic knife

Before we get into how to sharpen a ceramic knife, it’s important to know what not to do. You shouldn’t apply too much pressure while sharpening the blade in a lateral position. Doing so will eventually cause the blade to snap.


Instead, you should position your knife using both hands, and apply light force consistently, all while supporting the blade. Be sure that there is no flexing of the blade during the process to prevent snapping. Using both hands to slide the blade across the stone is the best way to successfully sharpen it while preventing damage.

Is A Ceramic Knife The Right Choice For You?

Ceramic knives aren’t for everyone, but if you are curious you may want to purchase at least one to see how effective they are. These knives are great for precision work with fruits and vegetables such as garnishing, but if you are hoping to use it for all type of meal prep, you may be disappointed.

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