Ceramic knives stand out amongst popular knife options for many cooks thanks to their robust blades, long-lasting edges, and strong resistance to acids. However, when it comes to their cleaning, are ceramic knives dishwasher safe?
After all, the cleaning and maintenance of your knife significantly impact its longevity and performance. In this guide, you will find out exactly whether or not a ceramic knife can be put into a dishwasher.
Are Ceramic Knives Dishwasher Safe or Not?
Technically, ceramic knives are dishwasher safe. Nonetheless, like any other knife, you should avoid using a dishwasher to clean a ceramic knife. The number one enemy to any knife, even the dishwasher-friendly ceramic knives is the high-pressure wash and cycles inside a dishwasher.
Due to the high pressure and wash cycles, items being cleaned inside the washer will experience a lot of bumping and tossing around. Over time, this may easily chip or crack your knife’s blade.
What Is a Ceramic Knife?
As the name suggests, a ceramic knife refers to a knife made with a ceramic blade that comes from zirconium dioxide/zirconia. Ceramic knives feature a hard and long-lasting edge compared to a regular steel knife. However, the edge tends to be somewhat brittle.
Ceramic knives are also popular for their non-oxidizing function, leaving a clean cut on fruits and vegetables even when left out for long periods. Generally, they perform well in cutting boneless meat, vegetables, fruits, and bread.
How to Clean a Ceramic Knife Safely and Easily?
You want to clean your ceramic knife in a regular kitchen sink. Use warm water and mild soap to clean the knife. If you notice any stubborn food residue build-up, use a soft bristles brush to gently scrape it off and rinse the knife with clean warm water. As soon as you finish rinsing it off, pat dry the knife with a paper towel or clean dry cloth.
Best Ways to Store Them After Washing
A ceramic knife is best stored in its own slot on a knife block. You want to avoid placing it in a regular utensil cabinet drawer.
This is because in an open drawer space with other utensils, it is at risk of being knocked around, ultimately, causing the blade to chip or break.
Do You Have to Sharpen Ceramic Knives?
Like other straight-edged knives, you have to sharpen a straight-edged ceramic knife. Unlike the popular misconception, you can’t go without sharpening a ceramic knife completely. The only difference it has with regular steel knives is that it maintains a longer-lasting edge.
This means that straight-edged ceramic knives require less regular sharpening. To get the best edge results, you should use a diamond sharpening stone, diamond coated grinding wheel, or a ceramic sharpener.
How Long Do Ceramic Knives Stay Sharp?
Compared to regular steel knives, ceramic kitchen knives will last up to times as long. This means that you can go for months or years without having to resharpen your knife based on the usage.
For example, a standard steel knife requires sharpening anywhere between one to three times a year. On the other hand, a ceramic chef knife may be sharpened once every two or three years.
What Are the Benefits of Using a Ceramic Knife?
Ceramic knives come with a plethora of benefits to enjoy. These include;
- They don’t rust or corrode
- They are technically dishwasher safe
- Robust and stiff blade for easy cutting
- They don’t leach food with a metallic taste
- They don’t bruise or brown soft vegetables and fruits
- A longer lasting edge that requires minimal sharpening
- They don’t react with acids – making them safe for food items like tomatoes and lemons
- They articulate thin vegetable and fruit cutting due to the sharper blade edge
Extra Tips on How You Can Care for Your Ceramic Knife
Here are additional tips to follow to help you preserve the longevity and performance of your kitchen ceramic knife;
Don’t Drop Them
Culinary ceramic knives incorporate pretty brittle blades compared to other knives. This, in turn, increases their susceptibility to break, crack, or chip on impact. So, if you drop your knife, chances are that it will break.
Don’t Use Them to Open Something (Like Bottle or Can)
Similarly, you don’t want to use your kitchen ceramic knife to open items like bottles or cans. The brittleness of the blade means that your knife will easily break when it snaps during the can or bottle opening process.
Never Cut Something Hard (Nuts, Bones, or Seeds)
You should never use a ceramic knife to cut hard foods like bones, nuts, seeds, or frozen foods. Due to the heavy force required to cut these foods, the knife’s brittle and delicate blade can easily flex or in worst cases, break!
Always Use Cutting Board
First, you should use a wooden cutting board despite the type of knife you use. After all, the board’s non-porous surface helps create a hygienic platform that prevents bacterial growth and the absorption of odor.
However, it is even more important to use a wooden cutting board with your ceramic kitchen knife to protect the blade’s sharp edge from dulling or chipping.
Don’t Use Them to Crush Garlic
Avoid crushing garlic using a ceramic knife as the forceful process can chip the blade. Simply use the knife on delicate boneless meat, vegetable, and fruit cutting tasks.
Don’t Use Grinding Stone to Sharpen
A ceramic knife’s blade requires an equally smooth tool to sharpen it. Using a regular grinding stone can easily snap the blade due to the high pressure it exerts. Instead, you should use a stone or grinding wheel made using diamond or ceramic material.
Use Your Hand Instead of a Dishwasher to Clean
As mentioned above, a ceramic knife is technically dishwasher safe. However, it also features a brittle blade that may suffer damage in the washer due to the high-pressure washer cycles. As the knife is knocked around against other items in the washer, the blade can very easily snap, chip, crack, or break.
Store Them in a Sheath or Knife Block
After every cleaning session, you want to immediately wipe dry the knife with a clean cloth or paper towel. Once done, store it in a sheath or knife block where it will be safe from being knocked around with other kitchen utensils (typically in a kitchen cabinet drawer).
What Are the Advantages of Ceramic Knives?
- Rust and corrosion-resistant
- Long-lasting edge
- Not affected by acidic foods or juices
What Are the Disadvantages of Ceramic Knives?
- Difficult to sharpen and requires special sharpening tools
- Easily chips or breaks on impact
- Not multi-purpose – you can use it on all types of foods
Ceramic knives certainly leave a mark when it comes to the best knives to invest in. They are hard, long-lasting, and deliver exceptional cutting performance.
While they are technically dishwasher safe, you still want to treat them like other types of knives to preserve their longevity.
Hand wash them, store them in a sheath or knife block, and you are guaranteed a lifetime of exceptionally functional knives.
I’m a writer, food lover, and certified culinary expert. I cook for my family and I enjoy it so much. My favorite tools are modern kitchen appliances that make cooking a simple task. I’m a passionate writer and I share only cooking tips, recipes, and what cooking appliances would best for beginners, enthusiasts, and home chefs. I learned a lot from my family and also in my university days. My biggest strength has always been my insatiable appetite to discover new food recipes and try to share them with others.