When should I change my knife?


When should I change my knife?
I already spoke to you in a previous post about knives, those without which nothing is possible (or almost) in the kitchen, so I'm going to come back to them a bit and try to answer the question "When should I change my knife?
15 K 4.7/5 (15 reviews)
Grade this page:
Last modified on: November 2nd 2017
For this post: Comment Follow Ask me a question Send to a friend
When should I change my knife?
You may remember how important it is to pay a lot of money for your knives, and to choose models with a stainless steel blade, a handle made of a composite material often called "plastic", etc. This is still true, and I dwell a little on the blade, which being made of steel, with time dulls, sharpens and must therefore be regularly sharpened. This is always true, and I dwell a little on the blade, which being steel, with time dulls, de-sharpens and must therefore be regularly sharpened.

The best way to do this is to use a sharpener, and in an elegant gesture (but unfortunately not easy to catch) you sharpen the blade again. To make a long story short, you should always have razor-sharp knives, it's always much more pleasant to cook with.

Let's come back to this knife sharpening, it turns out that in the gesture of sharpening, one naturally accentuates one's effort on the middle-lower part of the knife blade, and therefore it is there that the wear will be the fastest. This wear can be seen over time, it creates in the blade of the knife, very slowly, a small hollow, a slight curvature, which you can see on this photo (red arrow):

used knife



This hollow, if visible, is a sign that your knife is at the end of its life in "kitchen" mode: You will find it difficult to sharpen it, more and more, so it will cut less well, and will not be ideal for cooking.

To make a comparison, see these 2 knives side by side:

worn knife vs. new knife



The top one is new, the bottom one has lived well, note the hollow of the blade at the bottom, and the nice rounding of the top one.

It's time to change the bottom one, of course you shouldn't throw it away, but use it for something else than cooking (garden, DIY, ?) or recycle it.

Well, it's not always easy, we are often attached to our tools, that we have well in hand, but it is necessary to take the step, the old knives even if they have a sentimental value, can become a brake to your good cooking.


To sum up: When the blade of your knife starts to get hollow, it is time to think about changing it.

Lasts posts
Who's making the croissants?
Who's making the croissants?
When you look at a bakery from the outside, you naturally think that in the bakery, the bakers make the bread, and in the laboratory, the pastry chefs make the cakes. It's very often like that, with each of these professions having quite different ways of working, but sometimes there's also one...
November 23th 2025653
Oven height
Oven height
When we put a dish or cake in the oven, we naturally tend to put it on the middle shelf, and that's what we usually do. But in some cases, this position and height can be a little tricky, so let's find out why.
October 8th 20252,1565
The importance of sieving
The importance of sieving
In recipes that use a fine powder (flour, powdered sugar, etc.), you'll often see the advice to sift before using it. To sift is to pass the powder in question through a sieve (a very fine strainer) before incorporating it into your recipe. It's often advice, but is it really useful?
September 3rd 20257,1883
The grease spray
The grease spray
As soon as you have something in a recipe that sticks to the mold, the question always arises as to how difficult it is to remove from the mold. There's nothing more frustrating than breaking your cake when unmolding it, because part of it has stuck in the mold. The classic way to avoid this is...
August 26th 20256,7075
Cake moulds
Cake moulds
When we make a cake, or a cake of the same rectangular shape, we usually take out our usual mould and tell ourselves that the recipe is anyway "for a cake", but is it really that simple?
August 25th 20256,7385

Other pages you may also like
For well opened (puffed) cakes
For well opened (puffed) cakes
It's always nice to have a well puffed up cake after baking, not only will it taste good but it looks great too. Let's see how to get this beautiful shape almost every time.
January 23th 201934 K4.2
Cleaning endives
Cleaning endives
If you buy your endives elsewhere than in supermarkets, and in this case the best is of course from a market gardener, he or she is the one who planted and harvested them, in this case you will have endives full of earth or sand, depending on where they were grown, which is normal and reassuring, we...
March 24th 202026 K4.6
Sorrel and its cooking
Sorrel and its cooking
Do you like sorrel? This delicious plant with its beautiful bright green leaves, whose subtle acidity goes very well with many other things, including in particular cream, to form with salmon the emblematic dish of the 70's, "Salmon with sorrel" on which was built the beginning of the fame of the...
March 19th 202212 K5
The 3 kinds of meringue
The 3 kinds of meringue
Meringue – what could be simpler? Just beaten egg whites with sugar added. This makes a fairly stiff mixture which can then be cooked in a cool oven to create those lovely, light confections. But in the world of professional patisserie, meringue comes in three different kinds. Even if the...
June 14th 201364 K4.5
Drawing a pattern in pastry
Drawing a pattern in pastry
Often in the kitchen, in pastry-making, or in baking, we need to trace a pattern on a pastry. It's just a question of aesthetics but it has its effect after baking on a galette, pithiviers, pâté en croute (terrine in a pie crust), etc.
May 23th 201934 K4.1
Post a comment or question
Posted by:
I am not a leaving thing

Follow this page (as 3 people already do)
If you are interested in this page, you can "follow" it, by entering your email address here. You will then receive a notification immediately each time the page is modified or a new comment is added. Please note that you will need to confirm this following.
I am not a leaving thing
Note: We'll never share your e-mail address with anyone else.
Alternatively: you can subscribe to the mailing list of cooling-ez.com , you will receive a e-mail for each new recipe published on the site.

Back to top of page