10 Best Electric Knife Sharpeners in 2019

best overall rating
  • 3 stage sharpening system
  • Diamond abrasives
  • Sharpens beyond factory levels
premium choice rating
  • Diamond abrasives
  • 3 stage sharpening system
  • Designed specifically for Wusthof knives
great value rating
  • Suitable for serrated knives
  • Compact design
  • Manual knife sharpener

A sharp knife is an important part of your kitchen arsenal; sharp knives allow you to slice through anything with ease, and when they lose that sharp edge, it becomes much harder to cut anything, increasing the effort required and the risk of accidents in the kitchen. In order to keep your kitchen knives sharp, you are going to need a knife sharpener, and the fastest and easiest option there is to buy the best electric knife sharpener you can find. With a good knife sharpener, you can easily keep all of your tools in perfect condition, allowing you to cut anything easily and safely with minimal effort required to keep them as sharp as possible.

Below, you will find a guide to our top 10 favorite electric knife sharpener models of 2019. In our best electric knife sharpener reviews, we will break down the most important features of each electric knife sharpener, explaining why we like each one so much and how it stands out from the crowd as one of the best electric knife sharpener options available.

Related Review: Utility Knives.

We have also put together a handy buyers’ guide, explaining some of the areas you should consider when you’re looking to buy a new electric knife sharpener, helping you to get a good sense of what to look out for in order to buy the best electric knife sharpener possible for your needs.

View the Best Electric Knife Sharpener, Below.

best overall rating

1. Chef’sChoice 15 Trizor XV Electric Knife Sharpener

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The Chef's Choice 15 Trizor XV Electric Knife Sharpener is a professional quality 3 stage sharpening system that can quickly and efficiently sharpen even the dullest and most battered knives to razor sharpness. The quiet motor of this electric knife sharpener powers 3 distinct 20-degree sharpening slots.

The first 2 stages feature diamond abrasives for sharpening and honing the knife to a standard level of sharpness, while the third stage is built with a unique flexible abrasive disk to polish the sharp edge to an even higher level of sharpness for precision cutting and high performance.

Magnets are incorporated into the system to hold the knife smoothly in place as you draw it through the sharpening slots, giving an even and smooth surface every time with minimal effort required for high performance.

Why We Like It
  • 3 stage sharpening system
  • Diamond abrasives
  • Sharpens beyond factory levels
  • Fast sharpening
  • 3-year warranty
Stage Type
Three Stage
Abrasives
Diamond Abrasives and Flexible Materials
Dimensions
10 x 4.2 x 4.2 In
Our Verdict

The advanced 3 stage sharpening system and precision design of the Chef’s Choice 15 Trizor XV Electric Knife Sharpener allows it to transform factory sharpened blades to professional quality extra sharp tools.

Editor Rating
premium choice rating

2. Wusthof 3-stage PEtec Electric Knife Sharpener

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The Wusthof 3 stage PEtec Electric Knife Sharpener is a similar 3 stage electric knife sharpener to the Chef's Choice 15 Trizor XV Electric Knife Sharpener, with high quality 3 stage sharpening mechanisms designed to bring even the most heavily abused blade to perfect razor sharpness. This 3 stage electric knife sharpener is specifically designed for Wusthof PEtec kitchen knives, but it offers excellent performance for any type of kitchen knife, even effectively sharpening serrated blades with ease.

Much like the Trizor XV, the Wusthof 3 stage PEtec Electric Knife Sharpener features diamond abrasives on the first 2 stages and a flexible buffing disk for the third stage, bringing sharpened knives to the next level of sharpness.

Why We Like It
  • Diamond abrasives
  • 3 stage sharpening system
  • Designed specifically for Wusthof knives
  • Attractive design
  • Suitable for serrated blades
Stage Type
Three Stage
Abrasives
Diamond Abrasives and Flexible Materials
Dimensions
12.2 x 6.3 x 6.1 In
Our Verdict

If you own a Wusthof PEtec kitchen knife, then you can not get a better electric knife sharpener than the Wusthof 3 stage PEtec Electric Knife Sharpener. If you have any other type of kitchen knife, it is still a great choice!

Editor Rating
great value rating

3. SunrisePro Supreme Knife Sharpener

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While it may look simple and basic, do not let the Sunrise Pro Supreme Knife Sharpener and its deceptively low price fool you. This manual knife sharpener is a powerful and easy to use tool for sharpening any kitchen knife in only a few moments. Simply set the base of the blade of any dull, blunted knife into the sharpening slot and drawn the blade back, applying light pressure.

This model of knife sharpener offers incredible efficiency and speed, requiring only three or four individual strokes to restore the cutting edge of a blade. It is also one of the few models of knife sharpener designed to sharpen serrated knives as well as straight bladed ones!

One of the most important features of this knife sharpener is its safety locking system, with a locking handle that firmly fixes the sharpener into place on your work surface to minimize the risk of accidents and injuries from slips.

Why We Like It
  • Suitable for serrated knives
  • Compact design
  • Manual knife sharpener
  • Non-slip suction pad
  • Fast sharpening
Stage Type
One Stage
Abrasives
Tungsten Carbide
Dimensions
2.4 x 2.6 x 2.4 In
Our Verdict

The SunrisePro Supreme Knife Sharpener is one of the smallest and most compact models of knife sharpener available, making it easy to fit into drawers. It is an excellent choice for any small kitchen or other situation where space is at a premium.

Editor Rating

4. KitchenIQ 50353 Adjustable Knife Sharpener

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The KitchenIQ 50353 Adjustable Knife Sharpener is a versatile and powerful electric knife sharpener that can easily return any knife in your kitchen knife block to factory levels of sharpness in minutes with minimal effort required. The interlocking diamond wheels used in this electric knife sharpener provide all the power and sharpening effects of a multi-stage knife sharpener in a single sharpening device, saving time without compromising on sharpening power at all. This allows you to restore battered and abused knives to factory sharpness as efficiency as possible.

Why We Like It
  • Suitable for ceramic knives
  • Versatile tool
  • Sharpens both sides of the knife simultaneously
  • Adjustable sharpening angles
  • High-speed sharpening
Stage Type
Two Stage
Abrasives
Diamond Abrasives
Dimensions
10.5 x 8 x 4.6 In
Our Verdict

The flexibility afforded by the adjustable sharpening angles of the KitchenIQ 50353 Adjustable Knife Sharpener makes it an excellent choice for anyone with a wide range of different styles of knife in their kitchen arsenal.

Editor Rating

5. Presto 08800 EverSharp Electric Knife Sharpener

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The Presto 08800 EverSharp Electric Knife Sharpener is a high quality and efficient model of electric knife sharpener that offers excellent performance for straight kitchen knives made from alloy, carbon, or stainless steel, even those that are serrated in design (but only serrated on one side). The 2 stage sharpening process uses professional quality sapphirite grinding wheels for high speed, high-quality sharpening, and the second stage further refines the newly sharpened blade to a higher level of sharpness and smoothness for perfect cutting.

As an added safety feature, this model of electric knife sharpener features a set of 3 suction cups mounted on the base of the sharpener to hold it firmly in place on the counter top to prevent slips and accidents during the knife sharpening process.

Why We Like It
  • 2 stage sharpening system
  • Suction cup feet
  • Automatic blade guide
  • Professional quality sharpening
  • High-speed sharpening
Stage Type
Two Stage
Abrasives
Sapphirite Abrasive Wheels
Dimensions
9.9 x 7.2 x 4.8 In
Our Verdict

The professional quality sapphirite grinding wheels of the Presto 08800 Ever Sharp Electric Knife Sharpener allow exceptionally fast sharpening of even the bluntest and most battered of kitchen knives.

Editor Rating

6. LINKYO Electric Sharpening System

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Offering a balance between the complex precision of 3 stage sharpening systems and the simplicity and speed of single-stage knife sharpeners, the LINKYO Electric Sharpening System uses a 2 stage sharpening system for effective sharpening. The first stage is a coarse sharpening stage, reshaping the angles of your blade while sharpening and rejuvenating the cutting edge. The second stage provides the finishing touches to your knife sharpening, leaving the blade smooth and perfect for cutting.

This model of electric knife sharpener comes with a number of helpful safety features, such as the non-slip suction cup feet on the base of the sharpener to prevent unexpected slips and accidents, and the built-in stop feature that automatically stalls the sharpener if excessive downward pressure is applied, preventing your blades from being damaged.

Why We Like It
  • Automatic blade positioning guides
  • 2 stage sharpening
  • Easy to clean
  • Non-slip suction cup feet
  • Quick sharpening
Stage Type
Two Stage
Abrasives
Unspecified
Dimensions
9.8 x 4.9 x 7.2 In
Our Verdict

The LINKYO Electric Sharpening System is a simple but versatile electric knife sharpener that offers excellent performance for straight-edged knife blades with a minimum of time and effort required.

Editor Rating

7. Presto 08810 Professional Electric Knife Sharpener

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The Presto 08810 Professional Electric Knife Sharpener is a high quality 3 stage electric knife sharpener. Its first 2 stages use sapphirite abrasives for quick and efficient sharpening of even the bluntest and most battered of knives, while the ceramic abrasives of the third stage smooth the surface of any knife and hone it to the sharpest and smoothest cutting edge possible.

The adjustable blade selector element allows you to easily adjust the angle of sharpening for the optimum sharpening of any knife, ranging from thicker hunting knives to light blades such as paring and filleting knives.

Why We Like It
  • 3 stage sharpening system
  • Adjustable blade selector
  • Suitable for Santoku knives
  • Professional quality sharpening
  • One year warranty
Stage Type
Three Stage
Abrasives
Sapphirite and Ceramic
Dimensions
18.4 x 11.2 x 2.2 In
Our Verdict

Offering a good balance between the angles needed for wider sporting knives and finer Japanese knife styles, the Presto 08810 Professional Electric Knife Sharpener is an excellent all-purpose electric knife sharpener.

Editor Rating

8. Work Sharp Knife & Tool Sharpener

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The Work Sharp Knife & Tool Sharpener is a versatile electric knife sharpener designed to sharpen every single knife and bladed tool you may happen to own. The flexible abrasive belts of this knife sharpener are able to easily sharpen curved knives, serrated knives, gut hooks, lawnmower blades, scissors, axes, garden shears, and many other types of blade with speed and efficiency.

There are also detachable angle guides included that can be fitted to the Work Sharp Knife & Tool Sharpener to give precise sharpening of straight-bladed tools and knives of any style with ease.

Why We Like It
  • Easily replaceable abrasive grit belts
  • Precision sharpening guides
  • Suitable for a wide range of bladed tools
  • 1-year warranty
  • High-speed sharpening
Stage Type
Single Stage
Abrasives
Flexible Abrasive Grit Belts
Dimensions
5 x 9 x 5 In
Our Verdict

Many awkwardly shaped blades such as mower blades and garden shears can be challenging to sharpen effectively, but the flexible abrasive grit belts of the Work Sharp Knife and Tool Sharpener make it easy to keep these blades in perfect condition.

Editor Rating

9. Chef’sChoice 1520 Electric Knife Sharpener

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The 3 stage knife sharpening system of the Chef's Choice 1520 Electric Knife Sharpener allows efficient sharpening of any type of kitchen knife. The diamond abrasives of the first 2 stages give high-speed sharpening, restoring a blade to a reasonable level of sharpness in moments, while the third stage polishes the cutting edge to an exceptionally high level for perfect cutting. This third stage can also be used for sharpening serrated blades, allowing you to use a single electric knife sharpener for all of your home knives, whether they are straight, serrated, wide or narrow in design.

Why We Like It
  • 3 stage sharpening system
  • Suitable for serrated blades
  • Ideal for American and Asian style knives
  • Restores factory sharpness
  • 3-year guarantee
Stage Type
Three Stage
Abrasives
Diamond Abrasives
Dimensions
5.5 x 12 x 6.2 In
Our Verdict

The Chef's Choice 1520 Electric Knife Sharpener allows for high-quality sharpening of both 20-degree American style knives and the finer 15-degree Japanese knives, as well as straight and serrated blades, making it one of the most comprehensive electric knife sharpeners available.

Editor Rating

10. Shenzhen Knives Diamond Knife Sharpener

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The Shenzhen Knives Diamond Knife Sharpener is a compact and effective electric knife sharpener that offers excellent performance for sharpening most ceramic and stainless steel models of kitchen knife. It's diamond grinding wheel gives efficient and smooth grinding, while the universal knife guide slots built into the case hold your knife blade in place throughout the sharpening process to give the smoothest and most even sharpening possible in any situation.

This efficient sharpening process allows chips of up to 1 mm in size to be quickly and easily removed from ceramic blades, repairing damaged knives and restoring even the notoriously hard to sharpen surface of ceramic knives to smooth, effective sharpness once more.

Why We Like It
  • Designed for ceramic knives
  • Easy to clean
  • Adjustable settings
  • Universal Knife Guide Slot
  • Can eliminate large chips
Stage Type
One Stage
Abrasives
Diamond Abrasives
Dimensions
11.5 x 4 x 3.8 in
Our Verdict

Ceramic blades can be difficult to sharpen with most types of electric knife sharpener, but the Shenzhen Knives Diamond Knife Sharpener is designed for high-performance sharpening of ceramic blades with ease.

Editor Rating

Electric Knife Sharpener Buyer’s Guide

Types of knife Sharpener

There are many different types of knife sharpener available, but these fall into a number of distinct categories. The most obvious division is between manual and electric knife sharpeners. Both of these work with the same principles: scraping an abrasive surface against the metal of your knife blade to remove a little material from the knife, sharpening it.

The main difference between manual and electric knife sharpeners is which surface is moving. With a manual knife sharpener, you use the strength of your arms to draw the knife blade across the abrasive surface, while electric knife sharpeners have their abrasive surfaces mounted on spinning wheels, increasing the friction as you draw the knife through.

In both cases, there are different abrasive materials available for knife sharpening. Whether your knife sharpener is electric or manual, it will have a certain level of texture and a different material. A coarser grit level is great for removing rough surfaces at high speed, restoring a dull blade to a more effective level of sharpness, while finer grits remove less material and act slower.

These finer gritted abrasives are generally used as a final stage of the sharpening process, polishing the cutting edge of your blade and refining it to the smoothest and sharpest state it can be in. Think of it as functioning just like sandpaper! Heavy-duty sandpaper for major jobs, and fine sandpaper for smoothing and detail work.

How to tell When a knife Needs to be Sharpened

If you start feeling like your knife is less sharp and effective than it should be, the first step in your repair process should always be to hone it. Honing is a simple and efficient process that can make a significant difference in how your knife feels when you use it, but sometimes it is not enough for a battered knife. If honing your blade doesn’t seem to make a difference, then it is time to sharpen your knife.

If you can’t cut cleanly and quickly, then your blade needs some care and attention. A good kitchen knife should be able to cut through reasonably sturdy vegetables such as onions with almost no downward pressure at all. If that is proving a problem even after you have honed the blade, then you are going to need to sharpen your blade properly with an electric knife sharpener.

Knife Sharpening Angles

Different knives are used for different purposes, and these different purposes often require your knives to be sharpened to different angles. As well as this, some tools will only sharpen your blades to specific angles, which can further dictate which angles you sharpen your knives to. Most standard models of electric knife sharpener only sharpen to a single angle of 20 degrees, which is the most common angle for most larger American style kitchen knives.  Some higher-end and more advanced electric knife sharpeners, however, offer a number of possible knife sharpening angles, most often 15 degrees and 20 degrees.

If you want more angles than this, then the best option is to buy a manual sharpening stone and adjust your angle by hand, although this requires a lot more effort than an electric knife sharpener.  Some models of knife sharpening kit include an angle guide, allowing you to adjust your angle to fit whichever needs you may have for each blade.

While you might think that sharper angles would be better in every situation, this is not always the case. Sharper blades are more delicate and require much more maintenance and regular sharpening in order to keep them in good condition and maximize sharpness. They might cut more easily, but this added delicacy and required maintenance time can pose a problem if you are not prepared to dedicate a lot of time to looking after your knives.

In general, fillet knives, paring knives, and razors should be kept sharper than your other knives, with an angle of 12 to 18 degrees in most cases. Japanese style knives are best kept at a similar angle, somewhere between 14 degrees and 16 degrees, depending on the manufacturer of the specific knife in question.

Most kitchen knife blades are fine at anywhere between 15 degrees and 25 degrees, making them easy to keep sharp with any basic electric knife sharpener. Sporting knives should be kept wider still, as they take more abuse and strength is more important than sharpness in this category. 25 to 30 degrees is ideal for these outdoor knives.

The metal used in your knife can also affect how sharp you should keep it. Harder metals are generally able to hold a sharper edge without being too fragile. If you have got a high-quality chef’s knife made from a particularly strong steel blend, then you could potentially sharpen it as far as 12 degrees, but it will require more frequent sharpening and more maintenance time if you do that.

Honing

When a knife blade gets worn down and battered, the cutting edge of the blade can become misaligned and bent, losing its straightness. Honing is the process of straightening up that misaligned edge.

Honing should be performed more often than sharpening. If you are serious about your knives, then it is best to hone your knife before every time you use it, and after every time you wash and dry the blade. This is done with a sharpening steel; despite the name, sharpening steels do not sharpen the blade, but only hone it, realigning the cutting edge. Sharpening steels are cylindrical steel rods about 12 inches in length, and sometimes with one flattened side.

To hone your knife, run the sharp edge of your blade down the sharpening steel to restore its alignment. This is also usually done as the last stage of sharpening a knife.

Expert Tip

Sometimes, a manual knife sharpener can be better than an electric knife sharpener! Electric models require less effort to get a decent result, but if you are looking for the best results possible, nothing beats manual sharpening!

Did you know?

If you keep your knife in reasonably good condition at all times, you can sharpen it in under 30 seconds and get the sharpest edge possible with just a quick touch up!