We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What are Ceramic Knives?

Diane Goettel
By
Updated May 16, 2024
Our promise to you
DelightedCooking is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At DelightedCooking, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Ceramic knives are built exactly like traditional steel knives. They, however, have a blade made of a very hard kind of ceramic. The ceramic used in the blades on ceramic knives is often zirconium dioxide. Because of the hardness of these types of blades, they stay sharper longer than steel knives do.

The hardness of the material is determined by the Mohs scale, which ranks the mineral hardness of a substance. The Mohs ranking of the type of blade material used in ceramic knives is 8.5. While diamonds, the hardest substances on the earth, rank at 10, steel blades usually only rank at 6 or 6.5.

Although ceramic knives are very sharp, they are also quite delicate and must be handled with care. If they are used improperly, they can shatter or crack. Simply dropping the knife from too high a distance can chip the ceramic blade. Furthermore, ceramic knives cannot be sharpened in the same way that most knives are. A normal sharpening tool will most likely chip or break a ceramic blade.

If you purchase a ceramic knife, it is important to make sure that you also acquire the special sharpening tool that they require if one does not come with your purchase. Even though ceramic knives are brittle in comparison to steel knives, they are not nearly as delicate as most other ceramic materials. This is because of the special type of ceramic material that is used to make them.

Ceramic knives are used by some chefs, but they have important purposes outside of the kitchen. Because ceramic material does not rust in salt water, they are often used by divers who require such underwater tools. Bomb squads also employ ceramic knives because they do not conduct electricity. Therefore, they make the very dangerous job of disassembling a bomb slightly less hazardous. In cooking, ceramic knives can be an important tool to people with certain allergies.

Some security specialists are wary of ceramic knives. As they can be made entirely without metal, the knives are not noted by metal detectors. There are some machines that can detect ceramic knives. These, however, are not in widespread use. Although the military has developed some ceramic knives that are made without an ounce of metal, most commercial manufacturers have been persuaded to include enough metal in the knives so as to set off metal detectors.

DelightedCooking is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Diane Goettel
By Diane Goettel
"Diane Goettel has a BA from Sarah Lawrence College and an MA in English from Brooklyn College. Diane lives in Mount Vernon, New York with her husband, Noah. They are the proud parents of a Doberman Pinscher named Spoon. Specialties: book editing, book marketing, book publishing, freelance writing, magazine publishing, magazine writing, copywriting,"
Discussion Comments
By cougars — On Jan 26, 2011

@ Istria- If you are considering a ceramic knife, then you should know the knife’s limitations, and care for it in the appropriate way. I have had a set of Japanese Ceramic knives for years and they are still like brand new. I have the special sharpener for the knives, and I keep all of them in knife sleeves.

They are fragile, so you would not want to use them to bone a ham or a cut of beef. They are great though for jobs that require sharpness and precision. I use ceramics for all of my garnishing, for cutting thick-skinned fruits and vegetables, and for preparing sushi. Ceramic knives are also great for slicing delicate meats like fish and for making things like veal ceviche. They are great to add to a personal knife collection, but they will not be the best barbecue knives or knives for general kitchen staff.

By submariner — On Jan 23, 2011

@ istria- I haven't bought any ceramic knives recently so I am not sure about their quality now, but I had a couple of Kyocera ceramic knives a few years back and they both broke within the first year. The knives were great because they were extremely sharp, but they chipped in my knife drawer. If you are concerned with your money, then I would say buy a more useful knife rather than a novelty like a ceramic knife.

By istria — On Jan 22, 2011

Are ceramic kitchen knives better than steel kitchen knives?

Diane Goettel
Diane Goettel
"Diane Goettel has a BA from Sarah Lawrence College and an MA in English from Brooklyn College. Diane lives in Mount...
Learn more
DelightedCooking, in your inbox

Our latest articles, guides, and more, delivered daily.

DelightedCooking, in your inbox

Our latest articles, guides, and more, delivered daily.