How To Sharpen A Fillet Knife | 8 Easy Proven Methods

Whether for fishers, fishmongers, or cooks who like to prepare various dishes for the family, a fillet knife is one of the essential tools for you.

So knowing how to sharpen a fillet knife is essential. 

A dull knife can be very dangerous. Therefore you have to make sure your fillet knife is usually very sharp.

A sharp fillet knife will be helpful to cut your fish or meat safely and efficiently. 

By the end of this article, you will know the best methods to sharpen your fillet knife besides precise maintenance tips to make your knife last longer. 

Techniques to Sharpen a Fillet Knife

1-Use a Rock / Whetstone To Sharpen Your Fillet Knife

2-Use an Electric Sharpener to Sharpen Fillet Blades

3-Use a Rod to hone Fillet Blades 

4-Leather Belt

5-Nail File

6-Coffee Mug


8-Another Knife

Fillet Knife Sharpening

How to sharpen a fillet knife

Knowing how to sharpen a fillet knife is not considered an easy process. However, maintaining it razor-hone will make it more efficient. 

The blade’s flexibility creates a challenge during the sharpening process as it is challenging to maintain the knife in position to have a flat edge.

Here are a few essential instructions to know how to sharpen a fillet knife effectively.

Step1- Removing Of The Guard Clip

In most conditions, the guide clip can make the honing a little easier. It provides a larger surface where you will rest your knife back. 

With that being said, 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.

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

Step2- Adjust the Sharpening Angle Between 18 to 21 Degrees

The sharpening angles are essential; if you want to know how to sharpen a fillet knife.

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.

The angle provided above can achieve the best results. This is how to sharpen a fillet knife to have a razor-sharp edge easily.

Step3- Honed 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.

This is how to sharpen a fillet knife and achieve more even angles. Also, it will prevent the blades from being bent through the sharpening process.

Step4-Try to Slow Down

Don’t Try to complete the task quickly. 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.

You can test if it works at the correct pace by feeling it cutting over the blade.

In case you can not feel it, then this means the sharpening process is too quick.

Step5- Polish the Edge

Smooth the fillet knife’s edges. The polished edges cut better, Which will result in excellently cut fillets.

How to Sharpen a Fillet Knife

1-Using a Sharpening Rock / Whetstone To Hone Your Filleting Knife

Using a Sharpening Rock / Whetstone To Hone Your Filleting Knife

Using a sharpening rock or whetstone is one of the traditional sharpening ways.

It will provide you with additional control on your fillet knife and an excellent comforting situation during the honing. 

How to sharpen a fillet knife with a whetstone? A whetstone is an easy-to-use method. It does a great job in terms of knife sharpness.

Besides, you will not need to add more equipment apart from the sharpening stone itself.

You will adhere to a few steps to have hone edges. But before you start sharpening your fillet knife, you have to know how to do it right. 

You must know the technique and angles of knife honing. Otherwise, this may result in uneven knife edges that will not be appropriate to cut.

Follow these steps to know how to sharpen a fillet knife with a whetstone.

Required Tools 

  • A sharpening stone


  • 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.

You should protect your fingers and hands. Be aware to avoid any injuries.

2-Use Electric Sharpeners to Sharpen Your Knife

Use Electric Sharpeners to Sharpen Your Knife

How to sharpen a fillet knife with an electric sharpener? In fact, there are an electric knife and electric sharpener as well.

You can utilize an electric sharpener for your knife honing. This method is the simplest one among others. 

You can hone your filleting knife by running them across the narrow opening of the electrical sharpeners.

Knowing how to sharpen a fillet knife with this method helps you own your collection that requires sharpening regularly.

One fantastic benefit when you go with this kind of sharpeners is that they need moderate amounts of money and lower effort. 

You will find a lot of electrical sharpeners kinds at the market. You should pick the one that can hone the regular and electrical type as well.

To know how to sharpen a fillet knife with an electric sharpener to hone a fillet knife, you should select the right one first.

Safety is an important factor. Therefore look for a sharpener with a safeguard to provide protection to your fingers and avoid injuries.

Suppose your sharpener comes with several slots. So you can utilize it as a sharpener and polisher.

This feature will be so helpful. Once you have your sharpener, You need to know how to sharpen a fillet knife with it properly.

To understand how to sharpen a fillet knife with an electric sharpener, follow these steps.

Required Tools

  • Electric sharpener


  • Step 1-first hold your knife if you work with an ordinary 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-Continue repeating that step till you achieve the sharpness you want. This is how to sharpen a fillet knife with an electric sharpener.

3- Hone Your Knife With A-Rod Or A Sharpening Steel

Hone Your Knife With a Sharpening Steel

How to sharpen a fillet knife with Sharpening steel or rod? Using a rod or sharpening steel is another effective method for knife honing.

This way is easy and fast. You only need to slide your knife across the sharpening steel or rod. 

You have to keep the right angle between your knife and the rod.

Don’t apply these methods to hone your filleting knife if you don’t know how to sharpen a fillet knife with them correctly.

This method includes potential risk. To achieve good results, you have to apply a filing tool.

Finally, this one will be helpful when your knife requires a fast touch-up during continuous working.

To know how to sharpen a fillet knife with Sharpening steel or rod, follow these steps.

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-Next, You will apply the same angle as when you apply 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. This is how to sharpen a fillet knife with this method.

 Electric Fillet Knife Blades

How to sharpen an electric fillet knife

What Are the Electric Fillet Knives?

They are generally instruments that will help slicing and fillets of your poultry with mechanical pressure.

Some of them have a battery that you can recharge. Others are more assemble plug and start.

You can utilize it to produce more delicate slices by lower or without physical pressure.

The unit comes with a double serrated blade. These are pinned with each other and vibrate by a tiny electrical motor.

An electrical knife end is always serrated. This feature helps cut and carve during cooking and particularly decorative materials. 

Electric Fillet Knife Blades Sharpening

Some people consider that electrical knife edges do not require any honing. It is entirely not true. Whatever the types anybody uses, the honing task is essential to work.

This step will ensure you have the optimal knife performance. To know how to sharpen a fillet knife with this method, follow these steps.

Required Tools

  • A-Rod


  • Step 1-Take the electrical knife of the instrument gently.
  • Step 2-Grip the rod hardly. After that, take your 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. Then you will have an entirely honed electric knife. This is how to sharpen a fillet knife with this method.

Some Precautions to Consider During Electrical Knife Blades Honing

Electrical blades honing is an easy task. It will not require additional skills to proceed.

After you already know how to sharpen a fillet knife, you should know a few helpful precautions before you go with honing electrical blades.

  • 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, and there is no water or oil on them before starting. Water on hands leads 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.

The Best Technique to Clean Electric Fillet Knives Properly.

When you finish honing your electric fillet blades, it is essential to rinse and clean the blades to achieve optimum maintenance.

Required Tools

  • A bowl with a square shape
  • Water
  • Soap
  • A soft rag


  • Step 1-Turn off your electrical knife, then leave it to rest for a moment. This case is the one you want to clean your knife after any working sessions.
  • Step 2-Take off the cord or battery pack for more precautions.
  • Step 3-Bring a bowl with a square shape, then put every blade separate from other utensils.
  • Step 4-Start filling the sink with soapy water, then take each knife every time to wash it thoroughly. If one of them falls within the sink, please be aware while grabbing it off the floor.
  • Step 5-After that, wash your blades using clean water to remove the whole soap suds.
  • Step 6-Next, carefully start wiping your blades until you dry them.
  •  Step 7-Carefully place these blades back within their machine in an arranged style. 

How To Sharpen A Fillet Knife With Household Items

You might not find a sharpener when you want it. It is very usual to be incapable of finding a needful tool when we want it the most. 

For that reason, knowing how to sharpen a fillet knife with an alternative method to the honing equipment will be a helpful idea. It will not matter that you are in your house or out in the wilderness. 

Knowing how to sharpen a fillet knife with household materials will save you a lot of money as you will utilize low-cost items.

There are many household items you can work with for fillet knife honing. These items include a rock, a nail file, rod, another knife, leather belt, concrete, and more. 

We will show more up next how to sharpen a fillet knife with each one of these methods.

But first, you have to know the best technique to sharpen your knife at home.

You can use this method in need. However, do not make it your habit. 

Don’t confuse the result when you apply this method and the real knife sharpness. The ideal result comes from using a quality sharpener.

Now it is time to know how to sharpen a fillet knife with the following household materials.

1-Leather Belt

Sharpen Fillet Knives With a Leather Belt

How to sharpen a fillet knife with a leather belt? You might wear a nice shining leather belt at this moment.

So you have one of the most efficient sharpening tools out there. Typically a saloon razor is sharpened with a leather belt or strop. 

Moreover, you can apply the same technique with a fillet knife. You can do this by honing your blades across the leather belt length. This way is how to sharpen a fillet knife with a leather belt. 

2-Nail File

Sharpen Fillet Knives With a Nail File

Indeed, there is a nail file in your home. This tool may look very small to you. But it can act as a survival or travel kit.

Do you know how to sharpen a fillet knife with a nail file? A nail file can polish the nail, besides having an abrasive portion. 


  • 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. This is how to sharpen a fillet knife with this method.

3-Coffee Mug

Sharpen Fillet Knives With a Coffee Mug

Every house has a coffee mug on it. This item is one of the most prevailing household utensils.

However, do you recognize that your coffee mug can work as a honing tool? To know how to sharpen a fillet knife with this method.


  • 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

Another item for your knife sharpening is concrete. It is one of the effective ways and can achieve good results.

To know how to sharpen a fillet knife with this method, follow these steps.


  • 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. This is how to sharpen a fillet knife with concrete.

5-Another Knife

Do you know how to sharpen a fillet knife with another knife? Well, the knife comes with two edge kinds: hone and slimy ends and thick spines.

You can make the knife hone enough by running the blades across the other knife’s spine.

This way is like how to sharpen a fillet knife with honing steel. To go with this technique, make sure the knife you will select is more rigid and more robust than the one you want to sharpen.

Some Tips for Knife Maintenance

After you know how to sharpen a fillet knife, it is time to understand how to maintain it.

You should provide additional care to your knife to achieve an optimum performance besides making it last longer. 

Some people consider that those tools will not want maintenance because they come from stainless steel.

That is true; they are from stainless steel. However, stainless steel helps to prevent corrosion and rust. It will not make your knife sharper. 

For that reason, constant maintenance is vital to achieving a great performance level from your knife. There are some tips for your 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.
  • Please put them in closed areas as a safety precaution. You can store them in their sheath if there is one involved with your knife.

A hone fillet knife is a great assistant for anglers and survivalists. An angler will have to want it for cooking any tasty recipe. 

They are very popular with survivalists. When meeting an adverse situation within the wilderness, hone these blades will help save lives in some conditions.

Moreover, outdoor camping and fishing require a knife for some causes. It will help to cut different things. Dull blades can waste your time and effort when trying to cut anything with them. 

Thus knowing how to sharpen a fillet knife and protecting the blade’s edges from ruining will be essential. 

12 Things Never Do With a Kitchen Knife

1. Never utilize the Dishwasher to Wash Your Knives 

This one is the golden rule to take care of your knives. It is due to several reasons.

The high level of heat will ruin the knife metal. They will become warped. 

It would be best if you rinsed the knife by hand. Point the blades far from your body. And wrap the sponge around the knife spine.

2. Never Leave Your Knife Within the Sink. 

When leaving them within the sink can cause knife rust. Besides, you have to be aware as the sink is a dangerous area ( hard to see through spot), so be careful not to hurt yourself.  

3-Never Place Your Knives Away Wet 

Like the concept above, a wet knife will result in rust. So when you dry your knife before you store it, you can save your money and time. 

Besides, if you put a wet knife within the knife’s block, this can result in mold and other bacteria. It can harm you more than the harm on the blades themself. 

4. Never Store Your Knives Without Protection

Knives are delicate, Do not put them in a drawer without protection. Another knife or fork and spoon will scratch them and make them blemished forever. 

Instead, bring a knife block or magnet strips to maintain the knife’s sound and safety. You only have to remember cleaning the knife block.

5. Never Go for a Cutting Board Made From Glass. 

Working on a surface more rigid than the knife can harm the blades. You should select a wooden board to make sure your blades will stay safe. It is also essential to choose a board with the correct size for the knife. 

To know the right board size for your knife, you can do a simple test. Just lay the knife you tend to work with over the board at a diagonal.

In case your board is longer by a 2-inch than your knife, then this is the correct size for this one.

6. Never Work With a Dull Knife

Blunt blades are dangerous to work with them. It will require hard work to make a dull knife pass within a piece of food. Besides this, all is too close to your fingers. There will be an injury risk. 

7-Never leave the Knives Sit With Food Leftover 

Acid can lead to metal corroding. Therefore you should rinse and dry it once you are done. 

8- Never utilize Your Blades to Scrape up the Food 

It may seem with no harmful effect. However, it is better not to utilize the knife to scoop a chopped onion or for food scraping in the trash. 

This way can seem comfortable, but it can dull your knife. So as an alternative way, you can go with a bench knife.

This tool is a must-have in each kitchen. You can also utilize the knife spine (the non-hone edges).

9-Never Chop Up and Down

During chopping work with gently sway movement. Do not apply aggressive upward and downward trends.

The last one can be dangerous for your fingers besides harm your blades.

10- Never Put Your Knife Close to Counter Edge 

The nearer your knife to the counter edge, the nearer you are to a bad accident.

11- Never Attempt to Catch a Falling Knife

It is a natural sense to catch reach a falling thing. Therefore you only get out of the way if you see any knife stumbles toward the ground.

12- Never Work With the Knife directly After Honing 

Blades honing can produce a microscopic metal bit. It will reach your food. Therefore after sharpening, you should rinse your knife or wipe it down using a dishcloth.

Frequently Asked Question About How to Sharpen a Fillet Knife

1-What Can You Use a Fillet Knife for?

We already know many uses for the filleting knife, especially when it is related to the fishing or the fishing trade.

But You can find different ways to utilize this hone, flexible, versatile kitchen knife.

  • They come in two designs, curved or straight. The end is thick, and the tip is pointed, which will be helpful for delicate tasks. 
  • Moreover, you can use this knife to create a lovely design for fruits or vegetables.
  • It will also help prepare thin slices of meat, particularly chicken breasts, or utilize them to take off the gills and interior organs.
  • Plus, this tool is an excellent help when you remove the scales. A fillet knife is an ideal choice to trim the fat and the web from a small bird.
  • It is easy to take off the rinds, cores, and membranes of citrus fruits by using it. You will not taste the bitter one.
  • Also, this knife is beneficial for fruit and vegetable preparation. Besides using it to cut tomatoes, take off the corn from the cob, peel potatoes and take off seeds from squash. 
  • All these will be easy tasks by using a fillet knife. It will provide you with the most significant aid within your kitchen. 

2-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.

3-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.

4-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

5-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. 
  • Please 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.

6-Does Paper Cutting Make My Knife Dull?

It all depends on the paper kind and grade. If you utilize your blades to cut papers, this can eventually blunt and even harm your knife’s edges.

The organic paper fibers may not harm your blades and make them dull. But the materials that are added besides many fillers in the paper can do that. 

7-How Can I Find out If My Kitchen Knives Are Hone?

Required Tools

  • A piece of paper
  • A knife


  • Step 1-Get a piece of paper.
  • Step 2-grab it in between the fingers. 
  • Step 3-After that, slip your knife down. 

In case your knife is a hone, it can easily cut the paper with only the knife weight. However, If the blades are blunt, they will always be ragged or slide off.

8-Can You Utilize Olive Oil to sharpen Blades?

  • You should never apply a food oil like vegetable and olive oil to a sharpening stone.
  • It would be better if you only went with a honing oil approved for a sharpening stone. 
  • Other selections are diamond stones. A diamond stone will not even require applying any type of lubricant.
  • Therefore make sure to see instructions of the stone first.

Final Verdict

Now you know how to sharpen a fillet knife with different techniques. Choose the one that you want to go with and maintain your blades sharp all the time.

A fillet knife is a versatile knife. It has a long and flexible blade that can help you in many tasks.

Whether indoor for those who love to cook fish meals or outdoor during a camping or fishing trip. But a dull fillet knife can not do that.

How to sharpen a fillet knife guide use it to make your knife razor-sharp and to get the optimal performance

If you have any inquires about these methods or a new technique you want to share, just leave a comment.

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