SANTOKU™️ This site uses cookies to provide an optimized shopping experience. By using this site, you agree to the use of cookies within our cookie policy.

Can You Put Chef Knives in the Dishwasher? (Will It Ruin the Knife)

 


A chef’s knife is the workhorse when it comes to kitchen utensils, they cover a variety of cutting functions from mincing, dicing, slicing, and chopping and it’s fair to say that many people will have a premium quality chef’s knife as the prized possession in their knife collection. 


For such a valuable item, it’s common for people to look for the best way to maintain the quality of their chef’s knife and a question that is frequently asked is whether or not you can put your chef’s knife in the dishwasher to clean it.

You should never put your chef knives into a dishwasher to clean them as this can cause rusting, blunting/dullness of the blade, discoloration, damage to the knife, or other cutlery/utensils and in some cases even chip or break the knife blade. A chef’s knife should instead be washed by hand in warm, soapy water and then dried immediately to properly maintain the condition of your knife.

You might be quite surprised to hear that a chef’s knife shouldn’t be used in a dishwasher but there are several reasons why this can be harmful to the condition of your chef’s knife.

Below, we are going to outline some of these reasons as well as letting you know the correct way to clean your chef knives.

Table of content

Can You Put Chef Knives in the Dishwasher

The simple answer to whether or not you can put a chef’s knife in a dishwasher is that you can use a dishwasher to clean your knife if you need a quick or easy solution.

We are not going to say that you can’t do anything with your own property, the worst-case scenario for most people using a dishwasher to clean their chef’s knife is that it could cause damage to the dishwasher or other items in the machine if it happens to become misplaced during a cleaning cycle.

What we will say however is that it’s highly advised that you shouldn’t put your chef’s knife in the dishwasher to clean it. Many professional chefs and knife enthusiasts have weighed in on this topic and the resounding conclusion is that you should never put a chef’s knife in the dishwasher.

Chef’s knives can often be expensive items that need to be regularly maintained and treated with care to get a good lifespan out of them and a dishwasher can quite quickly ruin your knife when used as a cleaning method. Therefore, just because you can put a chef’s knife in the dishwasher, it doesn’t mean that you should be doing it.

Why Is a Dishwasher Bad for Your Chef's Knife

If you have a relatively cheap stainless steel knife or a commercial-grade kitchen knife then you’ll find that some knives are manufactured to make them dishwasher friendly however these are very specific sets of knives.

If however, you have a high-quality chef’s knife with more common characteristics like wooden handles, a carbon steel blend, or a particularly sharp edge (formed with a steep sharpening angle) then dishwashers are bad news for these knives.

There’s a small number of reasons for this which combine to seriously risk the quality of your premium grade knife.

Cause Rusting & Warping - The hot, moist, and humid temperature is not an ideal environment to leave your high-quality knives in and this sort of environment can easily cause rusting or damage to the blade or handle.

This is more true if you have a chef’s knife that has a carbon steel blade that can be prone to rust if subjected to a moist environment and this is also not ideal for chef’s knives that use a traditional wooden handle.

Abrasive Detergent - The most common reason you’ll find people citing as to why you shouldn’t put a chef’s knife in the dishwasher is because of the abrasive detergent that can be very harmful to the knives edge.

The PH and compound makeup for a lot of detergents can be particularly damaging to the edge of a high quality, sharp knife. These compounds can (and will) cause corrosion to the knife’s edge over time and start to dull the blade.

Certain chemicals will also cause rust to your knives and this ties in with the above point meaning that the combination of high heat and a moist environment with potentially harmful detergents can both rust, corrode and dull the knife’s edge of high-quality chef knives.

Damaged During a Cycle - Perhaps the biggest detriment to your knives in a dishwasher are the cycles themselves. Dishwashers fire high powered streams of water onto the cutlery and utensils to break down food, residue, and stains.

It’s a very good system for cleaning items however it’s damaging to your high-quality knives for a few reasons. Firstly, the high powered jets cause items to move around during a cycle (particularly those in a basket) and this movement will cause a collision.

This isn’t an issue for your basic cutlery however with finely sharpened knives, you’ll quickly find that this repeated collision dulls the blade almost instantly and can, on occasion, even cause chips to the edge.

How to Correctly Clean Your Chef Knives

There are a surprising amount of factors that can lead to incorrect cleaning of a chef’s knife which can ultimately be detrimental to the condition and longevity of your knife.

It sounds like such a simple task and you might think we are over exaggerating slightly here, but correctly cleaning a chef’s knife is a key task that should not be overlooked.

Some of the negative factors that we covered above that can ruin the quality of your knife if used in a dishwasher can also be applied to other forms of cleaning.

Leaving your knives to soak in hot water with detergent can have a similar effect to putting them in the dishwasher and leaves them susceptible to rust, corrosion, or dulling of the edge.

The correct way to clean a chef’s knife according to Viola Wüsthof  is by hand immediately after use or kept to one side to clean later.

She states that they should never be left in a sink to soak as they can then come into contact with pots and pans leading to a dulled edge (this is on top of our point about metal damage that can occur when doing this).

Therefore to correctly clean a chef’s knife and maintain its quality and longevity you should follow these simple knife cleaning steps:

  1. Hand-wash your knives individually in hot soapy water (never boiling water as this can cause expansion and shrinking of the metal and potentially warp the knife)
  2. Rinse and dry by hand, air drying should rarely be used as water left sitting on a blade can eventually lead to rusting regardless of the metal used
  3. Store the knife immediately after drying


These are some very simple steps to follow however they will go a very long way to ensuring your knife is kept in top condition.

Subjecting a chef’s knife to unfavourable conditions or putting it into contact with other utensils can easily run the risk of causing a dull blade, this might seem trivial but most chef knives (particularly of Japanese tradition like a Santoku knife) will have a very sharp edge and this makes them highly susceptible to damage if they are not handled with care.

 

Conclusion 

While it might seem like the dishwasher is a quick and convenient way to clean your chef knives, you will likely do more harm than good to your knives.

You could take all the precautions necessary to minimise the risks of dish-washing the knives but we firmly believe that for the time and effort it takes to simply wash the knives by hand, you’ll not only maintain the quality of your knife for as long as possible but also save time and effort that you’d need to spend sharpening your knives after they’ve inevitably become dull from being used in the dishwasher.




Cover photo by castorlystock
All other images are property of santokuknives.co.uk




Aiko (あいこ, アイコ) Damascus Steel Knife with coloured Blue resin handle
Aiko (あいこ, アイコ) Damascus Steel Knife with coloured Blue resin handle
Regular price
£399.99
Sale price
£299.99
Unit price
per 
Riku (リク) Damascus VG10 Knife
Riku (リク) Damascus VG10 Knife
Regular price
£349.99
Sale price
£199.99
Unit price
per 
Ichika (いちか) Damascus Steel Knife with coloured Octagonal Handle
Ichika (いちか) Damascus Steel Knife with coloured Octagonal Handle
Regular price
£306.00
Sale price
£249.99
Unit price
per 
Whetstone Sharpening Stones
Whetstone Sharpening Stones
Regular price
£49.99
Sale price
£39.99
Unit price
per 
Nakiri / Chukabocho (なきり) Full Tang Steel (Cleaver)
Nakiri / Chukabocho (なきり) Full Tang Steel (Cleaver)
Regular price
£109.99
Sale price
£59.99
Unit price
per 
Haruta (はるた) 67 layer VG 10 Damascus Steel kitchen Knives
Haruta (はるた)  67 layer VG 10 Damascus Steel kitchen Knives
Regular price
£600.00
Sale price
£399.99
Unit price
per 
Kiritsuke ( きりつけ) Damascus Steel Knife with coloured Octagonal Handle
Kiritsuke ( きりつけ) Damascus Steel Knife with coloured Octagonal Handle
Regular price
£129.99
Sale price
£65.99
Unit price
per 

our commitment

  • Sustainable Knives better thought out and better produced

  • 100% secure payment

  • Free Fast delivery and easy 30 days returns anywhere in the world

  • Any advice? Ask a question? Write to us at support@santokuknives.co.uk