How Often To Sharpen Knives (And Prevent Them From Dulling)

Dull blades not only feel awful and are frustrating to cut with but are also very dangerous.

A dull blade shouldn’t be ignored or solved by changing knives. But what should you do then?

In this article, we will explain what sharpening and honing is as well as how often, and how to actually do it.

What Happens When You Use Your Knife

First, we need to look at what happens when we frequently use our knives to understand when and how they need to be sharpened.

With moderate use, a knife’s edge gets bent or gets out of shape and doesn’t point at the right angle any more. This doesn’t mean that the edge isn’t sharp and should be sharpened.

It means that the blade still holds its edge but just isn’t facing the food when you cut with it. The blade’s sharpness is most likely intact, and actually, the blade’s angle is what is preventing you from making a smooth cut.

When this happens, sharpening isn’t required. Honing is the process that will get your edge back into shape.

Honing is most frequently done with a honing steel rod. This process is very often confused with the actual sharpening of the knife.

When you pass the knife through honing steel, all you’re doing is flattening the edge and getting it back into the right shape or angle. You are not actually making the edge sharper or changing its size to reform the edge.

So What Is Sharpening Then?

knife sharpening

Sharpening is the actual removal of the old dull edge. It is the process of grinding off the side of the blade to reform the cutting edge. When you hone the edge, you’re not altering the size of the blade and removing anything from it.

Every time you sharpen the blade of your knife it becomes smaller since you are removing the knife material. That’s why honing can be done as much and as frequently as you want, while you should be more vary how often you sharpen your knives.

When To Sharpen Your Knives

A good indicator that sharpening is required is when you see that honing steel doesn’t improve the performance of the cutting edge. It gets it back into shape, but the actual blade is still dull.

With moderate to frequent use of the knife, you can expect the blade to dull in 6 to 12 months.

When you notice that the edge is actually dull, it’s time to get your knives sharpened. But how should sharpen them?

Well, sharpening isn’t as easy as it sounds. The process of sharpening with a wet stone, for example, requires experience.

You have to be careful not to over sharpen the knives or sharpen them at the wrong angle. If you do so, you’re not only getting an edge that isn’t sharp, but you also reduce the life span of your knife.

If you aren’t too keen on learning to properly sharpen your knife, your best bet is to leave the sharpening to a professional. That way, you won’t have to worry about the sharpness of your knives and most likely won’t have to sharpen them as frequently.

How To Prevent Premature Dulling Of The Edge

knife sharpening

Many people believe that a wrong cutting technique can be a cause of frequent dulling of the edge. That most likely isn’t the case since most of the damage done to the edge of a knife comes from bad cleaning, washing, and storing practices.

If you want to save money and visit the professional sharpeners less frequently, you need to properly store and wash your knives after use.


A chef’s knife should never be washed in the dishwashing machine, even if the manufacturer says it is safe to do so. The chemicals and the high temperatures in dishwashers can dramatically reduce the life span of your knife.

Instead, you should only hand wash your chef’s knives using soap and hot water. After cleaning, a knife should be thoroughly cleaned and stored completely dry.


Storing your knife properly is of utmost importance for perseverance. A knife is supposed to be stored in a proper, sturdy knife block where the edge will rest undisturbed.

Storing your knives with other utensils can seriously damage the blade and make it unusable.

If you don’t have one, invest in a knife block. It is a wise investment for it will save you a lot of money and time in the long run.

Bonus Tips

To preserve your knife, you should use food-grade knife oil or lubricant. The oil will prevent the blade from rust, corrosion, and will make the performance of the blade better.

Another way of maintaining your knife’s sharpness is using a self-sharpening knife set.

These knife sets come with built-in ceramic sharpeners specially designed for honing your knives when you take them out or put them back into the knife block.

Make sure only to use the knives you got with the self-sharpening block since they are designed for that particular block. If you use other knives on the block, you may damage them since they aren’t at the same angle.


Knives have to be sharpened once in a while to preserve them and make them safe to use.

Make sure to know when to sharpen them using the information from this article, and you will save yourself money and time.