How to sharpen a ceramic knife? Complete step-by-step guide

Ceramic knives are a popular choice among chefs and cooks due to their lightness, precision, and durability. However, even with these advantages, ceramic blades eventually dull with use and need to be sharpened.

It is important to remember that sharpening ceramic knives requires techniques and specific sharpening tools, different from those used for steel knives.

In this text, Cutelaria Cimo will give you 7 techniques for sharpening and maintaining the edge of such a special product. This way, you will always have the best your ceramic piece has to offer!

1. Choose the sharpening stone

There are different types of sharpening stones available, each with a different abrasive grit. Choose a stone with a grit compatible with the condition of your knife's blade.

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2. Wet the stone

Soak the stone in water for about 10 minutes before you start sharpening. This will help keep the blade cool and minimize the risk of damaging it.

3. Position the knife on the stone

Hold the knife firmly and position it on the sharpening stone, maintaining an angle of about 20 degrees. Make sure to maintain the same angle throughout the process.

4. Sharpen the knife

With smooth and consistent movements, slide the knife back and forth on the stone, maintaining a constant angle. Repeat the process several times on each side of the blade until the edge is restored.

Check out: How to sharpen a knife with a honing steel? See the step-by-step guide!

5. Sharpen the tip

To sharpen the tip of the knife, use a circular motion instead of sliding the blade back and forth. Remember to maintain a constant angle throughout the process.

6. Test the sharpness

Check if the knife is sharp by carefully running the blade across your thumbnail. If the blade slides easily, it means it's sharp.

7. Clean the blade

After sharpening the knife, carefully clean the blade with a damp cloth to remove any loose ceramic particles.

You may also want to read: Knives as gifts: 5 original tips to know!

6 Tips to achieve the perfect edge on your ceramic knife

There are some essential tips that can be followed to ensure that the ceramic knife is sharpened properly, without damaging the blade. Check them out:

1. Before sharpening, check for "nicks" in the blade

Because it is very hard, one of the main problems with ceramic is small cracks (nicks) that arise from impact with a surface. They end up interrupting the blade, which in the case of a straight-cutting knife like this is a serious problem.

2. Perform tests during sharpening

Tests are your best chance to check if the sharpening is working! This is because a ceramic knife does not leave a burr when sharpened, which is a visual sign that the blade is being worked on, and because it is very hard, it requires a little more effort and time to reach the desired point.

When you test and are satisfied with the current edge, note how many minutes/times it took to reach that point and use it as a guide for future sharpening sessions!

Check also: How to sharpen a pocket knife: learn the step-by-step guide

3. For setting the edge, the honing steel can be ceramic

Although the diamond honing steel is still the most recommended for sharpening ceramic knives, you can now use a ceramic version, which is more commonly found and resistant enough to finish your work. In many cases, these honing steels already come with the knives in ceramic sets.

4. Keep using the sheath that comes with the knife

Maintaining the use of the knife protective sheath, even at home, is a necessary precaution to prevent small accidents that could damage the piece, in addition to being elegant and very useful for transport. Just like the honing steel, this protection can usually come with the equipment.

5. Pay attention to the surfaces and foods on which you use the knife

To preserve the sharpness of the ceramic knife and extend its lifespan, it is recommended to avoid cutting on granite, marble, glass, or tile surfaces.

These materials can chip the knife blade upon impact and ruin all the previous sharpening. The tip in this case is to use cutting boards made of softer and more flexible materials, such as plastic, silicone, wood, or bamboo.

The hardness of the foods you will use the ceramic piece on also deserves attention. Therefore, avoid cutting frozen foods, bones, and other firmer items.

6. Wash ceramic knives by hand

Ceramic is very easy to clean! Washing by hand, as you would normally do with other utensils, is more than enough to keep it sanitized.

Although practical, the dishwasher can bring unnecessary risk by moving items more abruptly, which can cause ceramic knives to collide with other things in the process.

The process of sharpening ceramic knives goes far beyond the simplest concepts. It is necessary to consider the material used for sharpening, perform several tests to find the ideal edge point on each stone, and pay attention to the finishing.

Did you like today's post? Then discover other types of knives and their functions here, on the Cutelaria Cimo blog!