How to sharpen Rapala fillet knife in 4 ways (Guide to 2021)

by | Apr 28, 2020 | cutlery and knife | 0 comments

fillet knife

It does not matter if you are a fishmonger, a fisherman or a chef who loves to cook delicious fish. Having a sharp Rapala fillet knife is a lifesaver. Using a sharp fillet knife will make it easier for you to separate the bone from the meat.

You also get more meat out of the fish as opposed to using a blunt knife. Before you learn to sharpen it, you need to understand why it is so important to address it.

fillet knife cut fish

A good reason to ensure that you always use a sharp knife is that the handle does not injure your hand. Think about it. If you have a blunt knife, you will need to hold it close to the handle and use a little force to get it to cut that meat out.

The force you use on the handle comes backwards on you and you will be left with a sore hand that may bother you for several days. Depending on the material of the handle, the damage may actually be worse.

Another critical reason why you should have a sharp blade is that it takes much less time to complete the preparation of the dish. With a sharp knife, it does not matter how many pieces you have to bone. The job is done faster and perfectly.

perfectly cut dinner fish

With your busy schedule, you will have your food ready on time so you can eat and relax before going to bed. Make sure your blade is sharpened properly and that it is always sharp. That’s why this article is for you.

I will show you the best practices to ensure that your fillet knives are always ready for work. The best part is that it takes less than 5 minutes to complete most of the procedures listed here.

How to grind Rapala fillet knife with an electric grinder

This is by far the easiest method to sharpen any knife. An electric sander is convenient and fast. Most of the grinders have at least two stages. One sharpens the knife by removing steel from the edges of the blade, while the other cuts the knife gently.

fillet knife electric grinder

It does not matter what brand or type of grinder you use because the rules are always the same. Learning to grind with an electric grinder is easy. You need to pull the edges of the knife through the grinding steps.

The stage is often a thin slit at the top of the sander. You determine the number of passes the knife takes to be sharp enough for your fish.

Honey is needed because it brings the edge of the knife back before it becomes dull again. It is a preventive measure. It’s also a great way to make sure the knife serves you for a long time. Here you do not have to let it polish several passes. Just one is often enough.

Use of a grindstone

The electric sander is not always available. This is especially true if you love fishing, like me, and always prepare your fish while you are out in the water. With a whetstone, you can easily sharpen your knife without worrying about the availability of power.

It is a method commonly used by purists. It provides a level of control that is not available when using an electric sander.

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Good knives are expensive. You really have to take good care of them. A rut is a step in the right direction. It is also called a diamond stone and is a great way for anyone to learn other traditional grinding methods.

On the flip side, before using it on your expensive Rapala fillet knife, you might want to learn with cheaper knives first. Once you understand how it works, you can use it to sharpen your fillet knife because you need to learn the right angles to use and the best technique for each type of blade.

When doing so, be sure to push the cutting edge over the stone as if you were slicing butter. The back of the knife should be placed slightly above the stone so that it can easily slide forward. This action makes the knife extremely sharp.

If you are unsure if you are doing it right, take a coin and use it to place your fingers over the knife. This keeps your fingers safe and injury free. Do this to both sides until they are sharp enough for the job.

Sanding with a sanding bar

This round metallic rod is an excellent tool for sharpening knives. All you have to do is push the knife over the steel. This should be done at the same angle as when using a whetstone.

It may be necessary to push the knife in a direction away from you so that you do not injure yourself. You can change direction as you get more used to it. In fact, there are filling tools that have threads that allow you to sharpen the knives over it.

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It is also perfect when you need to touch the knife, especially after cutting several fillets.

Coffee mug

sharpen knife with coffee mug

Occasionally when you have no other option, you can use your coffee mugs to sharpen your knives. Use the same methods that you would use on the amber.

Make sure the mug you use is not your favorite as it may be with black marks when you are done.

A coffee mug can work even better when you need to touch the knife so you can continue with the job. Never use a teacup because they are often too weak and can end up being damaged.


Learning to sharpen Rapala fillet knife is not as difficult as people assume. However, it is necessary to ensure that you use the right techniques. Follow my tips in this article to understand more about the angles to use and how the grinders should work.

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How to sharpen Rapala fillet knife

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