Ceramic Knives Are Fragile But Here’s What Not To Do

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Every chef knows that a sharp and well-kept knife is an essential tool in any kitchen. With a solid blade, you can turn whole, fresh produce into a work of art. Ceramic knives are popular, but questions like “do ceramic knives break easily” are popping up about these knives. Here’s what to know…

Finding the best knife for your needs can be overwhelming, especially with the many options available. You want to feel confident with your purchase – whether they will last and if they suit your style of cooking.

Read also: Best ceramic knife reviews – Complete guide

Are ceramic knives fragile? 

Ceramic knives are designed for fine slicing. They perform best under straight-line cutting, without torque or abrupt sideways movement. Made of zirconia, they are strong but at the same time fragile especially compared to steel knives. They can chip or break if used for the wrong purpose or mishandled.

In the rest of this article, I’ll cover why they are toughened, yet fragile, and what to do so they last.

Ceramic knives are incredibly sharp and keep their sharpness for much longer than metal knives. They are a useful addition in a home kitchen, even though they are ‘delicate’ and this ‘delicateness’ may turn some cooks away.

How fragile are ceramic knives?

Ceramic knives are not made from the same material as your ceramic bowls and plates. They are made with zirconium oxide, also known as zirconiaZirconia is second to diamond in strength. Forged at high temperatures, the blade is toughened. At the same time, being made of zirconia means ceramic blades are brittle and prone to chipping and breakage.

There are quite a few versions of zirconia, including:

  • Transformation-toughened zirconia
  • Blackened zirconia 
  • Partially stabilized zirconia

Each type of ceramic knife has slightly different properties, but all still hold a sharp edge better than any forged stainless-steel knife can. 

The advantage of a ceramic blade is that it won’t rust or become pitted by acidic foods, unlike steel blades. Ceramic knives won’t absorb odors or flavors from the food. As well as an enduring sharp edge, each of these is a considerable advantage to using a ceramic knife in your kitchen.

When do ceramic knives break easily?

The most important and basic rule when it comes to “what not to do with ceramic knives” is to never use them for heavy-duty chopping or prying. Never throw them around, nor mishandle them around hard surfaces.

Never try to pry or lever apart frozen packets with a ceramic knife, for example. Never use these for chopping or cutting boned meat.

Always store them in sleeves or a suitable knife block. Storing them without could damage them where other utensils or surfaces are likely to collide with them.

They are perfect for precision slicing of salad vegetables and impressive presentations of fruits. Fine slicing is where these babies excel.

Do ceramic knives break easily; image shows slicing salad vegetables is no problem
White ceramic knife used for slicing vegetables

How to care for your ceramic knife

Properly using, caring and storing your ceramic knives helps keep them performing their best for longer.

When moving, pack them appropriately – you’ll find all you need to know in my article on how to pack ceramic knives for moving.

Here are some of the best ways to care for a ceramic knife…

  • Store carefully.

    Using a butcher block to store your ceramic knife will keep it from getting bumped around in a drawer. This prevents chipping as well as potential cuts from not seeing it. Additionally, you can get a knife sleeve designed explicitly for your knife. Read also: my article on the best way to store sharp knives, including ceramic blades.

  • Wash by hand.

    Dishwashers often rattle, shake, or have items shift when under the high-water pressure. This can cause your knife to chip, dulling the blade. By washing and drying by hand, you preserve the blade and can store it immediately after use. 

  • Do not twist or pry.

    If you have the terrible habit of using a knife to get out an avocado pit or something similar, do not use a ceramic knife. Twisting, wiggling, and prying motions are highly likely to break the blade.

  • Do not use on frozen food or bones.

    Deboning a chicken or cutting through frozen items need lots of pressure or bending of blades. Both will chip or break a ceramic knife.

By following these simple steps, you’ll keep these knives incredibly sharp for a long time. 

How to sharpen your ceramic knife

Basically, all knives eventually become dull. Ceramic knives, even under the most exceptional care, will one day need to be sharpened. 

Read also: My article on the best ways to sharpen ceramic knives.

They hold their sharpness for so long because they are so tough, and they can only be sharpened by diamonds. 

One option is to send them back to the manufacturer to be sharpened when needed. Look into the warranty or manufacturer’s sharpening recommendations as some may provide a free sharpening service.

However, you can sharpen them yourself. There are knife sharpeners with a diamond edge available in the market.

Another option is to take the knives to someone locally who will sharpen it. Make sure they are experienced in sharpening ceramic knives since they can be easily broken if someone is inexperienced. 

What are the pros and cons of ceramic knives?

Ceramic knives are sounding pretty awesome, right? Well, we want to make sure you have a great picture of both the pros and cons of these knives.

The ceramic knife advantage

Some of the best parts – the ceramic knife advantage:

  • Sharpness.

    Blades will stay sharp around ten times longer than steel counterparts.

  • Cleanliness.

    Ceramic does not stain or transfer ions. Ion transfer among steel knives can oxidize fruit faster. They also do not have pores, preventing bacteria from growing

  • Lightweight.

    The lack of weight makes these knives very easy to handle.

  • Precise.

    Ceramic knives can be made so thin that they can slice fruits and vegetables incredibly thin as well.

Each of these characteristics makes for a sort-after item in any kitchen. 

Disadvantages of ceramic knives

While great tools, here are a few cons of these knives:

  • Special sharpening. 

    While sharpening rarely needs to happen, when it does it will need a diamond type of stone.

  • Fragile.

    Ceramic knives are prone to breaking or chipping if not adequately cared for.

  • Lack of versatility. 

    These knives should not be used for any jobs that involve twisting, prying, or too much pressure.

  • Learning curve.

    Ceramic knives handle differently than other knives. Because they are so sharp, they tend to cut into wooden cutting boards a bit more than others. So, learning the right amount of pressure your need to cut quickly without the friction of the cutting board may take some getting used to.

  • Non-magnetic.

    While it may not make a difference to many, those with a magnetic knife holder in their kitchen will not be able to store a ceramic knife on it. Also, these knives do not conduct electricity, though that is rarely a purpose for them.

pros and cons of ceramic knives. Do ceramic knives break easily
Advantages and disadvantages of ceramic knives that may be a dealbreaker

Some of these disadvantages may be a dealbreaker for a few. Nevertheless, the right job requires the right tool. And, if you’re one who is always sharpening a knife to slice that tomato perfectly, then you’ll likely appreciate the enduring sharpness of a ceramic knife. 

The best ceramic knives

The most well-known and loved ceramic knives are made by Kyocera in Japan. Made in Kyoto since 1959, these knives are well-manufactured and more durable than cheaper counterparts. They are well balanced and will be sharpened, for free, by Kyocera whenever needed. On top of that, they have an ergonomic handle to help with long chopping days.

Some popular choices in ceramic knives for the kitchen

I wrote about the cons of using these knives and answered frequently asked questions in my more in-depth reviews of popular ceramic knife sets.

Fragile yet fierce: Ceramic knives

Ceramic knives, when used correctly and stored well, can transform a kitchen. The speed, sharpness, and precision that these knives deliver can keep you going day after day. Great for bartenders, especially, these knives work well for those who find themselves chopping often or needing to be precise. 

So, before you garnish that next dish, consider grabbing a ceramic knife to help you along the way. If you take care of these knives, they are sure to take care of your fine slicing skills. 

Info source

Zirconia Material |

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