How to Sharpen a Fillet Knife | Easy Step by Step Guide

A dull knife can be very dangerous and will defenitely ruin the delicate flesh of your fish! That’s you need to know how to sharpen a fillet knife.

Here we will simplify to you the best methods to sharpen your fillet knife with ease from the comfort of your home.

Fillet Knife Sharpening

How to sharpen a fillet knife
How to sharpen a fillet knife

Before starting the fish fillet knife sharpening process, there are few instructions you need to follow to get the most of the sharpening process.

1. Remove of The Guard Clip

The guide clip can make the honing much easier. It provides a larger surface to rest your knife back. And sometimes when you are honing a thin knife or at low angles, the guide clip will obstruct the blade from being connected with the honing stone.

So watch how the sharpening process works and choose if it is better to take off the clip or leave it.

2. Adjust the Sharpening Angle At 18-21 Degrees

If you lay the filleting knife on the blade table with low angles, it will require a long sharpening period and lead to a weak edge. So you better adjust them to 18-21 angles to get the best results.

3. Hone the Blade Portion Supported by the BladeTable

When you hone a flexible knife such as a filleting knife, you must ensure that the stone ruins on the blade tabletop, to prevent the blades from being bent through the sharpening process.

4.Slow Down

Honing the blades at a slow pace can help you to grab them stable on the blade table.

The sharpening stone can have a better cutting and will remain clean while sharpening. So You can test if it works at the correct pace by feeling it cutting over the blade. And In case you can not feel it, this means the sharpening process is too quick.

5. Polish the Edge

The polished edges cut better and will give you excellently cut fillets.

Read also , Things to Consider When Buying an Electric Knife Sharpener

How to Sharpen a Fillet Knife?

1-Sharpen a fillet knife with a Whetstone

Using a sharpening Rock / Whetstone To Hone Your Filleting Knife
Using a sharpening Rock / Whetston

Using a sharpening rock or whetstone is one of the traditional sharpening ways. It will provide you with additional control on your fillet knife. (take a look at the Best Sharpening Whetstone Set).

How to sharpen a fillet knife with a whetstone?


  • Step 1. Start sliding the knife end across the rock or whetstone surface. It is similar to when you slice butter.
  • Step 2. Be careful not to make the knife’s thick end get in touch with the sharpening stone. Continue working until your fillet knife becomes hone.
  • Step 3. You can utilize a coin to keep the right angle between your knife and the stone.
  • Step 4. Continue working on the two knife sides till you achieve the needed sharpness. This is how to sharpen a fillet knife with a sharpening stone.

2. How to Sharpen a fillet Knife with an electric knife sharpener?

Use Electric Sharpeners to Sharpen Your Knife
Use Electric Sharpeners to Sharpen Your Knife

An electric sharpener is the simplest and most functional knife sharpening method. Follow these steps to make sure you make the most of the electric knife fillet sharpener.

Check out our list of the best electric knife sharpeners.


  • Step 1. First hold your knife or remove the instrument’s electrical knife.
  • Step 2. Put the knife cutting end within the convenient sharpening opening.
  • Step 3. Begin gently and slowly, and do not use excessive pressure.
  • Step 4. Make sure to grip your knife firmly during working.
  • Step 5. Run the knife blade upward and downward. Make sure to keep the sharpener in the same serration if you hone serrated edged ones.
  • Step 6. Repeat that step till you achieve the sharpness you want. 

Check also, 10 Best Bread Knife 2022 Review

3. Sharpen a fillet knife using a sharpening steel

Hone Your Knife With a Sharpening Steel
Hone Your Knife With a Sharpening Steel

A sharpening rod is is another functional answer to the question: how to sharpen a fillet knife? Here is how to make the most of this knife sharpener.

Required Tools

  • A filing tool
  • Sharpening steel or rod


  • Step 1. Maintain your knife stable and continue sliding the filing tool across the knife edge. 
  • Step 2. Apply the same angle as the one you applied when using the honing stone. 
  • Step 3. Slip your knife in the direction far from the body.
  • Step 4. Continue working till you achieve the satisfying sharpness.

Read more , How to Care for Your Paring Knife?

Sharpen an electric fillet knife blade

how to sharpen electric fillet knife
how to sharpen electric fillet knife

Electric fillet blades slice your fillets, poultry and meat with mechanical pressure. Some of them have a battery that you can recharge. and others need electric current.

They have double serrated edge pinned with each other and vibrate by a tiny electrical motor. (check the best electric fillet knives on the market right now)

Required Tools

  • A-Rod


  • Step 1. Take the electrical knife of the instrument gently.
  • Step 2. Grip the rod hardly. After that, take your blunt knife from the flat base and make sure the end is facing far from your body.
  • Step 3. Hold the sharpening rod in the initial knife serration. After That, start running your knife upward and downward across the sharpening rod.
  • Step 4. Assure that you do this in the same serration and the same direction 
  • Step 5. Continue working till you achieve the desired sharpness.
  • Step 6. Repeat those steps for the remaining serrations.

Some Precautions to Consider During Electrical Knife Blades Honing

  • Make sure to unplug the knife from the electrical socket before starting the honing task. This step looks obvious; however, accidents occur.
  • Do not be in a hurry to finish the task. Besides, Do not apply too much pressure during sharpening. This quick job can lead to ruining the electrical knife; you may injure yourself during honing.
  • Your hands must be dry, wet hands lead to slide danger. Besides, there is an electrical hazard with some electric blades.
  • Never try to touch the blades directly prior, through, or after honing. You should test it on another thing instead.
  • The last thing, never do quality compromising. You do not want to damage a pricey electric knife when you go with a low-quality sharpener.

How to Sharpen A Fillet Knife With Household Items?

knowing how to sharpen a fillet knife with an alternative method to sharpening tools is a helpful idea. It will save you a lot of money as you will utilize low-cost items.

There are many household items you can work for fillet knife honing. including a rock, a nail file, rod, another knife, leather belt, concrete, and more. let me talk about them in-depth.

1-Leather Belt

Sharpen Fillet Knives With a leather belt
Sharpen Fillet Knives With a leather belt

It’s super-duper easy! simply hon your blades across the leather belt length.

Read more , How to shuck oysters without an oyster knife

2-Nail File

Sharpen Fillet Knives With a nail file;
Sharpen Fillet Knives With a nail file
  • Step 1. Hold the rugged and uneven part of the nail file.
  • Step 2. You can do that by running your knife against the emery board. This one can help you to have a honed end.

3-Coffee Mug

Sharpen Fillet Knives With a coffee mug
Sharpen Fillet Knives With a coffee mug
  • Step 1-Firstly, overturn your coffee mug. You will find a raw portion at the reversed coffee mug top. 
  • Step 2-Start running your knife through the tougher area of your mug. Remember to choose a ceramic mug; the plastic one will not do this job. This is how to sharpen a fillet knife with a coffee mug.


Sharpen Your Fillet Knife With a Concrete
Sharpen Your Fillet Knife With a Concrete
  • Step 1-Bring concrete with a smooth surface. 
  • Step 2-Then start running the knife across the concrete. It is like when you do it with a sharpening stone. But, remember to pick a concrete part that will not harm the knife infrastructure.

5-Another Knife

A knife comes with two edge kinds: hone, slimy ends and thick spines. You need to run the blades across the other knife’s spine.

Also check, What are the Benefits of Oysters? | 7 Healthy Advantages

Some Tips for Knife Maintenance

  • Wash your knife using lukewarm soapy water. Never go with dishwater or hot water. Excessive temperature can harm the knife handle or different portions that are not from metal.
  • Do not put your knife at the metal pan bottom. By doing this, you will protect your knife from any galvanic action. It is like when metal gets affected by another. So, You can save the knife edge from damage.
  • Never let any washing agent stick to your knife. Wash your knife and wipe to dry with a smooth towel or a cloth.
  • Put them in closed areas as a safety precaution. As in their sheath or storage block.
  • Never Leave Your Knife in the Sink. 
  • Never go for a glass cutting board (Here is the best materials for cutting boards)

FAQ about How to Sharpen a Fillet Knife

What Are the Differences Between a Fillet Knife and Boning Knife?

A boning knife is made specifically to separate the bone and meat. On the other hand, a fillet knife is commonly helpful to remove skin and bones from meat, mainly from fish.

What is the Ideal Length for a Fillet Knife?

They are from 4 to 10 inches long. The short ones about 4 to 6 inches are meant for small fish such as perch, trout, and mackerel. 

In case you search for a knife with more versatility that will work with almost any fish size, select the one from 7 to 8 inches long.

Also read , How to Hone Your Knife? | Easy Guide

How Often You Will Need to Hone Your Blades?

You should do that every few months. The whole of this counts on how often you utilize them. it is also recommendable to give your blades a professional Sharpe each 1-2 years.

Why Do My Blades Become Dull So Quickly?

The material your blades come from is too rigid than anything you would typically cut. So the blunting effect on the knife-edge is too low.

But when the knife comes in contact with a more rigid material, this can increase blades dulling possibilities. 

Take this as a rule, The more rigid the material your blades contact with, the quicker it will become blunt.

It would be best if you avoided any contact with a hard material to prevent premature blunting.

Final thoughts

Now you know how to sharpen a fillet knife with different techniques. we expect you to never have a dull fillet knife again!

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