Ceramic knives are famous for their long lasting sharpness. In fact, Kyocera ceramic knives can retain their sharpness for 10 times longer than a steel knife. Thus, if you take care of your ceramic knife, its sharpness will last for many years.
However, if your knife’s edge gets damaged like for example a small chip or a broken tip, you can often correct or at least improve the functionality of your ceramic knife by sharpening it. There are two main ways of doing this: sharpening it yourself or sending it to Kyocera for their sharpening service.
Having your knife sharpened by Kyocera
If you live in the U.S, the cost of Kyocera’s sharpening service is $10 dollars for shipping. You can send all of the knives that you own in the same shipment. This service can be used as many times as you want, providing that you pay the shipping fee, of course. Follow this link for more info: http://www.kyoceraadvancedceramics.com/lifetime-sharpening/
Not living in the U.S? Don’t worry, Kyocera has many branches around the world. You can look up your nearest branch here: http://global.kyocera.com/prdct/fc_consumer/kitchen/resharp.html
I’ve added a video so that you can see the actual process:
How to sharpen the knife by yourself
The easiest way to sharpen your knife is to buy Kyocera’s ceramic knife sharpener. It has a diamond grinding stone and is electrically powered (four AA batteries). It fixes the knife at a 35-degree angle and has a safety cover. Anyone can use this sharpener without prior experience.
Although it can be used for metallic knives, Kyocera doesn’t recommend it. Also keep in mind that you shouldn’t use it for serrated knives, or for single-edged knives such as Kyocera’s sashimi knife.
What about honing?
Kyocera sells a honing rod (also called a sharpening rod), but it is made to sharpen metallic knives only. The honing rod works by realigning the microscopic serrations in steel knives, and since it doesn’t take off any material you can hone metallic knives as many times as you wish.
Ceramic knives, however, don’t need to be honed. Don’t get confused with the term “ceramic honing rod”, it just means that the honing rod itself is made of a ceramic material.