The All-in-One Guide to the Best Electric Knife Sharpener 

Knives are among the most hardworking tools in the kitchen, and they perform at their best when they remain sharp.

However, even knives with excellent edge retention turn dull after months of constant use in the kitchen.

While you can take your knife to a manual sharpening shop or a cookware store for a quick sharpening session, it’s more practical to have a sharpening tool on hand.

Investing in a good quality sharpener will be more economical and convenient in the long run, as you would be able to increase the sharpness of the knife anytime.

And to help make the buying decision easier for you, I have compiled a comprehensive list of the best electric knife sharpeners on the market based on various reviews, as well as their performance. These will surely take your cutting experience to the next level.

The Best Electric Knife Sharpeners for 2021

1. Presto 08800 EverSharp

A popular pick among Amazon shoppers, the Presto 08800 EverSharp is an affordable, automatic, and efficient kitchen tool that sharpens non-serrated blades excellently.

What’s great about this sharpener is that there is no guess sharpening as it is designed with an angle guide the position of the knife at the correct sharpening angle (usually 15-20 degrees) with perfection in every use.

This particular contraption has Sapphirite sharpening wheels, which are the same ultra-durable materials utilized in shops.

Plus, it can sharpen even your dull knife in a matter of seconds, so it’s a breeze to work with. With its two-step stages (coarse grit and finer grit slots ), it grinds with precision and hones knives finely to a razor-sharp edge fit for any chopping task.

On the other hand, there are claims that this two-stage sharpener is not best for paring knives. If you’re looking to sharpen medium to large knives like your chef knife regularly with minimal effort, this may just be the sharpening partner you’re in the hunt for.


  • AffordableEfficient
  • Automatic


  • Not ideal for paring knives

2. Chef’s Choice Trizor XV EdgeSelect

If you’re looking for a professional-grade sharpener, then you should consider purchasing the Chef’s Choice Trizor XV EdgeSelect for your edge sharpening needs.

Equipped with 100% diamond abrasives and an advanced stropping stage, this kitchen tool can sharpen both straight and serrated knives.

Deceptively easy to use, this Chef’s Choice favorite has a compact design so storing this tool in your kitchen won’t cause you any problems. In addition to this, this sharpener can process your blades so that they’re better than their factory edge.

On top of all these benefits, the company behind this product, Chef’s Choice, offers a 3-year warranty, which is a testament to the confidence of their tool’s capability, and also, you can have yours returned or replaced should any issue arise.

It should be noted that this premium Trizor product does have a hefty price tag. If this is not a major issue in your book and you have a stock of expensive blades or high-quality knives, you should keep this Chef’s Choice model on your shopping list.


  • 100% diamond abrasives
  • Can be used for straight and serrated knife
  • Easy to use


  • Expensive price

3. Shenzhen Knives Electric Diamond Knife Sharpener Tool 

Function meets affordability in the formidable sharpener that is Shenzhen Knives Electric Diamond.

Equipped with a Diamond Abrasive Grinding Stone with two slots, this kitchen tool can sharpen ceramic and stainless steel knives coarsely and finely.

It is also armed with a universal knife guide slot to keep your blades at a traditional V angle bevel edge every time.

What’s great about this particular model is that its diamond wheel cartridge and cover are detachable, which makes for easy cleaning.

The cartridge can also be replaced to make sure that the product is consistent, and provides precise sharpening for a long time. This tool is also very compact, so it’s convenient to store even if you don’t have a lot of space in your kitchen.

This sharpener is better suited for home use and works on different kinds of knives for everyday use making it worth the consideration.


  • Sharpens ceramic and stainless steel
  • Coarse and fine options
  • Easy to clean


  • Better suited for home use

Next Read: Best Santoku Knives for 2021 Reviewed

4. Kyocera Advanced Diamond Hone Knife Sharpener

If most of the kitchen knives are ceramic, it is strongly recommended that you check out the Kyocera Advanced Diamond Hone Knife Sharpener.

Very easy to maneuver, this knife sharpener is designed with a knife guide and roller assist for precision controlled sharpening at the best degrees or correct angle (usually 20-degree angle) with every usage.

The best part is that this model, which has a powerful Diamond abrasive grinding wheel, can process steel blades, too.

This sharpener is battery-operated so you don’t always have to worry about looking for a power outlet. You don’t have to think about making a mess as well as you sharpen your blades as this has a safety cover compartment.

Plus, it has a very compact size, so storing this kitchen contraption after every use won’t be much of a problem.

On the other hand, this kitchen tool is not optimal for thick blades such as paring knives. It’s also for right-handed users only, so there’s that. However, looking at the bigger picture, it still makes for one fine kitchen investment with minimal effort needed.


  • Best for ceramic knivesBattery operated
  • Safety cover compartment


  • Not for paring knives
  • For right-handed users only

5. Kyocera Advanced Diamond Hone Knife Sharpener

If your kitchen is stocked with fine-edge steel knives, the EdgeKeepe Sharpener might just be the best sharpening partner for you particularly.

As efficient as it is compact, this high-performance electric sharpener works like a pro as it provides precise results with every usage. Ridiculously easy to use, it can process your steel blades at the ideal sharpening angle or degrees in a matter of a few seconds.

What’s unique about this particular sharpener is that it has a removable magnet feature that catches all metal filings so it’s easy to clean up after use.

It is also equipped with non-slip silicone feet so you don’t have to worry about it slipping from your kitchen counter. Best of all, it’s a very durable appliance, so it’ll last in your kitchen for a long period.

It should be highlighted that this piece of equipment is not best for ceramic and serrated knives, but if that’s not a big deal in your book, you should still check this electric knife sharpener out, and see what it can do for yourself.


  • Easy to use
  • Removable magnet feature
  • Non-slip silicone feet


  • Not for ceramic and serrated knives

6. Kai House Electric Knife Sharpener

The Japanese are known for their lightweight and ultra-sharp blades, and this sharpener from the Land of the Rising Sun will keep them that way.

This electric grinder sharpens every knife blade to a durable shape, a feat that cannot be achieved with your everyday whetstone. Your knife will be as good as factory new after it meets this super-compact kitchen tool.

Like a Japanese-style craftsman, this sharpener tilts every blade to a perfect angle for extreme precision with each usage.

Its white alundum whetstone feature has the power to revive dull blades, while its finishing stone smooths them for a polished and sleek finish.

All in all, if you’re looking for Japanese quality work or if you have a lot of Japanese knives, this is a good fit for you.

However, this particular electric sharpener is not optimal for all types of bread knives and single-edged knives, but if these are non-dealbreakers in your opinion, you should check this model out.


  • Super compact
  • Durable
  • Precise sharpening process


  • Not for bread knives and single-edge knives

7. Work Sharp Knife & Tool Sharpener

Need a heavy-duty sharpener that can sharpen not just knives, but also other tools such as scissors, garden tools, mower blades, and axes, then Work Sharp Knife & Tool Sharpener might just be the ideal fit for you.

This model sharpens every knife in your arsenal quickly, easily, and consistently without damaging or burning it, thanks to its abrasive grit belts.

What’s great about this model is that it can perform custom precision grinding to your tools at a consistent angle without the use of a blade guide.

It can also be powered by your car or boat, so you don’t always have to worry about looking for a power outlet. You can even use it on camping trips. This tool can work on your biggest blades and even your pocket knives, so it’s bound to see a lot of action.

Some people note that using this versatile tool can create quite a mess, but if cleaning up after usage isn’t much of an issue in your eyes, you should consider purchasing this multipurpose powerhouse for cutting-edge sharpening.


  • Multipurpose
  • Consistent sharpening
  • Easy to use


  • Can create a mess

8. Wusthof Electric Knife Sharpener

If you’re looking for an electric knife sharpener that can do the job for you with a quick touch of a button, look no further than this one.

Featuring three speeds (shape, sharpen, and refine) for your specific needs, this tool is equipped with an internal vacuum system so cleaning up after every usage is a total breeze.

This kitchen contraption also has a special intelligent timing system that guarantees optimal sharpening every single time.

What’s great about this product is that it can also sharpen a serrated edge at a high speed. It can also revive blades that have been damaged and lost their luster.

Lastly, the manufacturer offers a one-year warranty, which goes to show how confident they are with their product.

The elephant in the room is that this particular quality sharpener will cost you a pretty penny. If that’s not much of a big deal in your book, you should still consider buying this Wusthof product as your partner for quick sharpening in the kitchen.


  • Easy to use
  • Three speeds
  • Can perform ceramic sharpening


  • Expensive price tag

Related: Which are the Best Paring Knives for 2021?

9. LINKYO Electric Knife Sharpener

A quick, safe and simple kitchen knife sharpener, the Linkyo sharpener has the power for automatic blade positioning so your knife is primed for precise sharpening, and a heavy-duty non-slip suction cup feet to keep it steady with every usage.

With this tool’s two-stage sharpening process, you can reshape the angle, sharpen and revive your blade edge, and hone and polish it to sharp perfection.

What’s great about this effective sharpener is that it has mess-free receptacles, so it’s easy to clean up the metal shavings after.

This contraption also has an automatic ‘stop’ feature to prevent you from damaging your knives. Effortless to use, you can even use this to revive damaged blades in your arsenal, so what a win!

The thing about this quality knife sharpener is that it doesn’t work on shears or serrated blades, but if you’re in the market for resharpening straight-edged blades only, this Linkyo sharpener might just be the one you’re looking for.


  • Easy to useNon-slip suction cup feet
  • Can revive damaged blades


  • Not for serrated blades or shears

10. THRITOP 3 in 1 Electric Knife Sharpener Tool

Affordable and multipurpose, the Thritop 3 in 1 electric sharpener tool is a small but powerful kitchen tool every practical household should have.

This compact sharpener has the capability not only to sharpen knives but also scissors and even screwdrivers. With a one-touch on/off switch and automatic retractable cord, this tool is easy to operate and store, which is a total win for small kitchen spaces.

This particular model has 4 non-slip feet or suction cups underneath so you don’t have to worry about keeping it firmly in place while using.

It also has fast heat dissipation so it won’t overheat even with constant usage. This is the perfect electric grinder for those who want hassle-free resharpening every single time.

However, there are claims that this product can make a bit of noise, but if you don’t mind the loudness, you should still consider buying this total steal as your electric sharpening partner in the kitchen.


  • Easy to use
  • Multipurpose
  • Affordable


  • Loud

Best Electric Knife Sharpener: Buyer’s Guide

As detailed above, there are a lot of options for every budget. Some of the top products on the market even fall under $50. Some of them can cost up to $200.

All of them have their unique strengths and setbacks. There are even those that can perform above and beyond what is expected. However, the ideal sharpening partner for you would depend on a lot of factors.

So how do you narrow down the list even further? What are the things you should bear in mind before choosing “the one?” To improve your chances of procuring the right sharpener for you, we’ve made a list of some factors you should consider while shopping for your sharpener:


The good news is that this kitchen tool doesn’t cost an arm and leg, but how much are you willing to invest for your knife sharpening needs? These sharpeners can retail for as low as $20 up to $200. One should bear in mind that you won’t necessarily have to sharpen your blades daily, you should factor that in as you carry on your shopping.

Sharpening stages and slots

What is the capability of the electric knife sharpener you’re eyeing? What’s its honing process? Does it have the ability to bring back to life damaged knives?

Some sharpeners have different options to choose from, while some are more straight to the point. Most knife sharpeners have two stages or slots: coarse and grit, and if you’re not looking for special honing and toning, this should be fine for everyday cooks.

Knife capability

While most knife sharpeners can work on straight-edged blades, not all of them have the power to work on serrated and ceramic knives. Some special models can even work on shears, screwdrivers, and other blades.

However, if your knives are mostly straight-edged steels, you don’t need a contraption that can work on other types of blades. You need to be realistic about what type of blade you’re sharpening.


Handling blades in itself pose risks of getting nicked, and working with an electric sharpener is the same, so you need to analyze the safety features of the electric knife sharpener you’re eyeing.

Some models have non-slip features so you don’t have to worry about their stability on your kitchen counter. Some also have compartments or magnets to guarantee easy cleaning after usage. You need to take proper care of your blade materials for them to be effective.


The materials which your electric grinder is made of determines the quality of sharpening it is capable of. The most popular and the strongest material electric knife sharpeners are made of is diamond. They’re second to none when it comes to durability and hardness.

Sapphirite is a close second when it comes to quality. It’s also common among budget-friendly options. Other commonly used materials are polished ceramic, carbide tungsten, and bonded synthetics. High-quality materials equal optimum sharpening.

On one hand, most, if not all, sharpeners are easy to use and store, so you don’t have to think about how to sharpen knives to perfection every time you utilize them, and keeping them afterward.

On the other hand, there are some impressive yet not so practical functions you can live without. So the choice is up to you. At the end of the day, it boils down to you and your priorities in the kitchen. What do you need in a knife sharpener and what are the things you can live without?


Q1: How often do you have to sharpen your knife?

The duration in which you should sharpen your knife would depend on how much action it sees in the kitchen. Knives usually need to be sharpened every few months to retain maximum sharpness and performance. On the other hand, kitchen knives that are well-taken care of need to be sharpened every one to two years.

Q2: Are electric knife sharpeners any good?

Yes, these sharpeners can sharpen dull blades or revive your old blades to a factory-grade edge. Some even have the power to make your knives even better than before. It depends on how you take care of your cutlery.

Q3: Do professional chefs use electric knife sharpeners?

Well, it depends. Professional chefs invest a lot of money into their craft, and some prefer the manual method of sharpening knives, while others use sharpeners. It depends on their preference.

Q4: How long does an electric knife sharpener last?

If you take care of it, a good quality model can last in your kitchen for about ten to twenty years. It all depends on how often you use your kitchen tool, and how you clean and store it after every use. In short, how long it will last you specifically would depend entirely on you.

Q5: Can you sharpen scissors with an electric knife sharpener?

Some electric grinders can work on different kinds of blades, which include scissors and even your trusted pocket knife. However, not all sharpeners have the capability to do so. It’s best if you refer to your user manual if your product has this special feature.

Final Thoughts

Every kitchen’s got to have great quality knives, but you must take care of your knives to ensure that they perform to the best of their abilities.

Investing in a good quality sharpener will help your cutlery slide, dice, and chop with precision and excellent sharpness for a very long time.

There are a lot of fantastic options for every budget and need, so choose your sharpening partner well. At the end of the day, as with anything in life, if you take care of things, they last.

Jennifer Dumas

My name is Jennifer! Welcome to Dinners and Dreams. My goal here is to encourage you to try out recipes you never thought you could make at home. Furthermore, I also review products that I have used in the past or currently using to make every day buying decisions easier and to ensure you get the best value for your money.

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