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Best Electric Knife Sharpener – Buying Guide & Reviews

We can tell you from experience that it’s extremely frustrating to try and cut food using a dull knife and having to purchase a new knife every few months is even more annoying. Luckily, there is a way to keep your kitchen knives as sharp and effective as they were when you first bought them. It’s called an electric knife sharpener and unlike old-school methods like sharpening stones, this one is super easy to use and doesn’t require any specialized technique.

The following guide on how to find the best electric knife sharpener is designed to provide you with all the information you need to purchase a worthy product. This includes a buying guide and our top 10 selection of the best electric knife sharpeners on the market. Read on for more.

What is a Sharpening Angle?

The “sharpening angle” is a phrase that’s commonly used to describe knife sharpeners, and it basically refers to the cutting edge of the blade or the part that’s used to slice through food.

The sharpening angle contributes to the durability and sharpness of each knife so it’s very important to keep that in mind when shopping for a knife in the first place. Now, each knife has a unique sharpening angle that you must adhere to when using a knife sharpener.

If this is your first time sharpening your knife, then you might have a hard time figuring out what its sharpening angle is. That’s why it’s helpful to purchase an electric knife sharpener that comes with an angle guide that’ll automatically adjust to your knife’s unique angle.

It’s also worth looking into flexible angle guides because they make it easier to sharpen your knife over time. A knife with a fixed angle guide is quite difficult to sharpen because you have to be careful when applying pressure, as too much pressure will damage the knife.

A flexible guide, on the other hand, is easy to use and will enable you to sharpen your knife accurately by following its unique angle. Experienced users will do well to opt for an electric knife sharpener that features a dial which will help you determine the particular angle you’d like to use when sharpening each knife.

PLAN - PRICE

Description

Chef’sChoice 15 Trizor XV

Works perfectly for delicate blades


Works fast


Easy to use


Suitable for serrated knives


Works on damaged knives as well

PriorityChef Knife Sharpener

Provides long-lasting sharpness


PriorityChef is very Easy to use


Comes with an ergonomic handle


It's very stable thanks to the cushioned bottom

Work Sharp Knife & Tool Sharpener

Versatile


Easy to control thanks to the adjustable motor speed


Suitable for novice and experienced knife sharpeners


Comes with adjustable angles

Presto 08810 Knife Sharpener

Presto 08810 Knife Sharpener comes at a good price


Presto 08810 comes with different sharpening angles


Presto 08810 is designed to automatically hold the blade at the right angle for you

LINKYO Electric Knife Sharpener

Leaves each blade with a razor-sharp edge


Comes with a sturdy cord


Easy to clean


LINKYO knife sharpener Features two slots


Automatic blade positioning

Things to Keep in Mind When Looking for an Electric Knife Sharpener

For the most part, a knife with a thinner angle will have a sharper blade. But, it goes deeper than that. To help you understand the intricacies of knife sharpening, here are some of the most important features and considerations to make before you purchase an electric knife sharpener.

Sharpening Wheel Type

First of all, you have to consider the specific mechanism and type of material that the sharpener is constructed from as that will determine its performance. The most popular type of material that manufacturers use is diamond.

A diamond abrasive is usually a good sign because it’s one of the toughest materials in the world. But, diamond abrasive is a double-edged sword because it can also cause harm to your knife, especially if it has a delicate blade.

So, it depends on the type of knives you’re planning to sharpen as much as the sharpening material itself. Alternatively, you could opt for abrasive belts which are not as aggressive as diamond and are flexible enough to use on hard and delicate blades.

Flexible abrasive belts are commonly recommended for owners of exotic knives with unique curves and materials because this will reduce your chances of damaging the blades.

Number of Sharpening Stages

Now, you’ll have to put your knife through two or more sharpening stages depending on the number of slots provided in your knife sharpener. The more complicated the design of the electric knife sharpener, the more precise it will be at polishing your knife.

Most models come with a three-stage sharpening process that goes from coarse grinding to precision grinding and lastly, polishing. These are usually large, bulky and even difficult to operate. For something compact and straightforward, opt for a two-stage process sharpener.

Knife Angle Guide

When sharpening a knife, it’s important to remain within the sharpening angle of your blade. This is no easy feat, especially for the average knife owner who doesn’t know much about sharpening knives. That’s why it’s useful to have a knife sharpener that incorporates an angle guide to help you stay within the right sharpening angle for your knife.

Knife Handle

It’s also important to look at the type of handle that your knife sharpener has. It’s not uncommon to see reviewers complaining about vibrating handles that actually make it harder to sharpen your knife, and will leave your hands feeling numb and painful.

For the best results, look for a knife sharpener that has an ergonomic handle that’s easy to use and comfortable to hold. This will improve your chances of doing a good job from the beginning because you’ll have total control over the device and an “ergonomic” handle is usually a sign of a good quality knife sharpener.

Color

Some of the best electric knife sharpeners come in nondescript colors that are not at all indicative of their performance. However, this might be important for someone who wants their knife sharpener to fit in with the decor and the color scheme of their kitchen.

Keep in mind that most knife sharpeners come in white, black, silver or grey. But, there are some companies out there who are taking it to the next level by adding other, more exciting color options to the mix, like red, blue and mint green.

Purpose of Use

You can use an electric knife sharpener for residential or commercial use. However, knife sharpeners come in different types to suit different knives. There are specific knife sharpeners that are designed for use in a professional kitchen while others are suitable for use in a normal home kitchen.

Commercial knife sharpeners are usually more complicated because they come with more features and are made from better quality materials. But they come at a higher price because of their specialized build. Household knife sharpeners are simpler and more affordable in comparison and have fewer features as well.

Why Do Knives Go Dull?

It’s inevitable that every knife blade will go dull over time. This happens as a result of poor storage, overuse or even inappropriate use. On the other hand, a blade can lose its edge when used to cut through hard surfaces such as wooden cutting boards, meat bones, and plates.

Over time, the blade’s thin edge will start to roll and fold, causing small nicks to occur. However, these defects happen over a long period of time and in such small increments that it’s almost impossible to notice that they’re happening.

By the time you notice it, the damage will have been done and you’ll have a dull knife with a blunt edge to deal with.

How to Check If Your Knife Needs Sharpening

You’ll know your knife needs sharpening when it’s not cutting and slicing through food like it once used to. Like “new brooms sweep clean”, “new knives cut clean” too. The older a knife gets the more effort you have to put into cutting, and the less effective it becomes. In most instances, a blunt knife will do more damage than good.

You might start by honing your knife to get it in working shape, and if that works then you’ll have to put it through an electric knife sharpener to restore its sharp edge.

Why Buy an Electric Knife Sharpener and Not a Manual Sharpener?

There are numerous reasons why you should choose an electric knife sharpener over other devices. The top reasons that come to mind include the fact that an electric knife sharpener is super easy to use for the average knife owner, and it doesn’t require any special skills or training.

Most models come with clear and simple instructions on how to operate the device according to the different sharpening stages, and built-in guides are there to ensure that you sharpen your blade according to the correct angle. That way, your knife will stay useful for longer because its cutting edge is still on point.

We should also mention here that electric sharpeners work fast and will enable you to enjoy your knife again in no time!

The Difference between Sharpening, Grinding, and Honing

A lot goes into sharpening a knife. You might have been able to tell that this is the case when we mentioned that knife sharpeners come with a two to three-stage process. This is in addition to featuring different slots for grinding, honing and polishing.

During the first stage known as “grinding”, most sharpeners use a coarse abrasive material to get rid of imperfections that have accumulated on the knife. After that, the knife will go through the honing process which is designed to smooth out the edges of the blade.

The first stage also creates a wire edge on your blade which is neither durable nor smooth. The second honing step gives smooth edges by removing all flaws, leaving behind a knife that’s much more durable. As such, this step requires a coarse grinding stone with a fine grit. That’s why any good knife sharpener should always have separate slots for each stage in order to get the job done right.

Best Electric Knife Sharpener

An electric knife sharpener is the best thing since knives were created. Whether you’re an avid home cook or a professional chef, you’ll benefit from having sharp, smooth and polished knives around, and a good knife sharpener will help keep your blades working like new!

To help you find the best electric knife sharpener for your unique needs, we’ve put together a list of what we consider to be the best knife sharpeners on the market right now, complete with pros and cons of each option for your consideration. We looked far and wide at electric knife sharpener reviews to bring you this list, so most of these models are tried and tested.

1 – Chef’sChoice 15 Trizor XV EdgeSelect Electric Knife Sharpener

This is a Chef’s Choice knife sharpener so you know it’s designed for professional-grade blades. It’s suitable for double bevel class and single bevel 15-degree knives since it has a 15-degree sharpening angle. At a stretch, you can also use this sharpener for 20-degree class of knives but this will convert them to 15-degree class knives that are sharper and better at sharpening than before.

This sharpener has a 3-stage sharpening process that helps to preserve the blade’s material thus prolonging its lifespan and performance over time.

This Chef’s Choice knife sharpener uses a diamond abrasive during the first and second stages, while a flexible stropping disk is used for the third stage. The first two stages are designed to achieve an accurate angle while the final stage will leave your knife smoother and sharper than ever.

Also, the stropping disk makes this an ideal tool to use in sharpening serrated knives like bread knives, as well as Asian, American and European style knives.

Pros:

Works perfectly for delicate blades
Works fast
Easy to use
Suitable for serrated knives
Works on damaged knives as well

Cons:

It’s limited to 15-degree angle knives only

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2 – PriorityChef Knife Sharpener

The measure of a great electric knife sharpener is its ability to sharpen all types of knives while strengthening them as well. This requires master craftsmanship and construction from durable and reliable materials. This PriorityChef electric knife sharpener ticks all the boxes and features a unique and attractive design to boot!

It comes with fabulous features such as an ergonomic handle that makes sharpening a walk in the park. You’ll feel comfortable and assured while moving your blade between the different sections and it even has a rubberized cushion for steady handling.

This also features a two-stage sharpening mechanism which means it’s quick but efficient. All you have to do is position your knife optimally on the indicated slot and it will come out sharper when you gently drag it out on the other side.

You’ll be glad to know that this electric sharpener is suitable to use on hard steel blade and high-quality knives, so it’s perfect for the budding chef that doesn’t have a lot of cash to spare. This is a great option for anyone that’s looking to sharpen dull knives for better performance.

Pros:

Provides long-lasting sharpness
Durable
Easy to use
Comes with an ergonomic handle
It’s very stable thanks to the cushioned bottom

Cons:

Only comes with two stages
Single slot
It’s sharpening ability leaves much to be desired

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3 – Work Sharp Knife & Tool Sharpener

According to knife sharpener reviews, this Work Sharp knife and tool sharpener is a jack of all trades that’s easy to use and it’s ideal for beginners. It’s versatile enough to use on all types of different blades, from filet knives, hunting knives, pocket knives, outdoor knives tactical knives and bread knives.

It’s even suitable for ceramic blades because it comes with dedicated diamond belts among other durable materials. There are fine, medium and coarse belts that are designed to cater for different knives at different stages of bluntness.

The coarse belt is mostly recommended for sharpening cutting tools and repairing damaged blades, while the fine belt works great for sharpening serrated knives and honing your blade. Meanwhile, the medium belt is designed for general knife sharpening and is the most versatile of the three.

Not only that but this sharpener also features precision guides to ensure that you get an excellent result regardless of whether you’re a beginner or an experienced sharpener.

The 40-degree guides are perfect for sharpening precision blades and regular kitchen knives, while the 50-degree guide is designed for outdoor knives, and the 60-degree guide is for household scissors.

Pros:

Versatile
Easy to control thanks to the adjustable motor speed
Suitable for novice and experienced knife sharpeners
Comes with adjustable angles

Cons:

It might be difficult to see the guiding system at first
The belts are rather expensive to replace

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4 – Presto 08810 Professional Electric Knife Sharpener

This Presto 08810 is considered to be one of the best electric knife sharpeners on the market, and this is despite its affordable price tag. This device is one case where price is not an indication of quality.

It comes with features like a 3-stage sharpening process that makes knife sharpening a breeze. The first stage will help you angle the knife accurately so that you get a smooth and precise result thanks to the coarse Sapphire wheel.

The same Sapphire grinding wheel is used in the second stage to achieve a precise edge on the blade that you’d be hard-pressed to find with other sharpening methods.

The third and final stage involves putting the knife through the ceramic wheel with a fine grit that polishes the blade up until it’s razor-sharp. This sharpener is suitable for knives of different angles thanks to the included interchangeable guide, and this is what delivers exceptionally professional results.

Pros:

Good price
Comes with different sharpening angles
It automatically holds the blade at the right angle for you

Cons:

Takes some time getting used to

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5 – LINKYO Electric Knife Sharpener

If you’re looking for a straightforward, no-fuss knife sharpener, this might be the option for you. This easy to use electric knife sharpener comes with receptacles that are dedicated to catching any shards and fillings that are created during the sharpening process. That way, you don’t have to clean up afterward like you would with other sharpeners. These receptacles are “plugged in” to the sharpening device.

Also included in the LINKYO electric knife sharpener is a two-stage mechanism. The first stage involves sharpening and reshaping the blade according to its unique angle, while stage two is all about honing and polishing the knife.

In the end, you get a razor sharp knife blade that works like new. You don’t have to worry about safety because that’s taken care of with the automatic blade guide which is designed to help even the most inexperienced knife owner to position the knife properly.

The LINKYO won’t get wobbly thanks to the non-slip suction cup and it’s the best home knife sharpener in our opinion.

Pros:

Leaves each blade with a razor-sharp edge
Easy to clean
Works fast
Safe to use
Features two slots
Automatic blade positioning

Cons:

Unfortunately, this knife sharpener only works for straight edge knives

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6 – Shenzhen Electric Diamond Knife Sharpener

The Shenzen brand is well-known among knife aficionados and this sharpener is proof of their expertise. This particular sharpener is designed to help maintain ceramic knives specifically, which is a rare thing in products of its category. But, it’s not just good for ceramic knives. It works for stainless steel blades as well.

It comes with two removable sharpening wheels which are easy to clean and replace when need be. The cartridge features a duo of sharpening stones including an 800 grit stone for honing and fine sharpening, a process which comes after coarse sharpening with the 600 grit stone.

The best part is that both stones are made from diamond abrasive. These features, taken with the motor that powers this machine, make this a world-class sharpener that can make short work of the deepest chips on your blade.

While most knife sharpeners struggle with a shallow sharpening slot that makes it difficult to keep the knife steady during the sharpening process, the Shenzen takes care of that with its raised slots which make for a safer operation while guaranteeing that it’ll sharpen your blade from handle to tip.

Pros:

This sharpener is able to remove chips that are as deep as 1mm
Comes with two diamond abrasive sharpening stones
Detachable cartridge makes this easy to clean

Cons:

Doesn’t work on serrated knives, outdoor knives, and kitchen scissors

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7 – Wusthof PEtec Electric Sharpener

This Wusthof electric knife sharpener comes from two of the world’s most famous names in the knife-making business: Chef’s Choice and Wusthof. The latter is known for its German engineered high-performance knives, while the former is first for being one of the best manufacturers of knife sharpeners.

The two brands collaborated on this Wusthof PEtec model which is one of the best electric knife sharpeners we’ve seen yet. First off, PEtec stands for Precision Edge Technology, and this is what the creators have used to give the device the ability to completely re-profile a knife’s edge.

It comes with three diamond abrasive slots with a 14-degree knife bevel angle that puts your knife through a three-stage sharpening process. The first two stages are responsible for coarse grinding and honing, while the final stage will polish the blades using a dedicated stropping disc.

Pros:

Features a modern design
Can sharpen a blade to a 14-degree bevel angle to re-profile the knife
Comes with a three-stage grinding process

Cons:

It doesn’t work for hunting knives, pocket knives, and other such thick blades

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8 – Smith’s 50281 Adjustable Edge Pro Electric Knife Sharpener

The Smith brand is known for its expertise at sharpening knives to a sharp edge. The 50281 Edge Pro comes in two options; one with diamond sharpening wheels and the other ceramic wheels, or you could use both if you like and get the best of both worlds. The diamond stone works best for sharpening while the ceramic one hones a knife like nothing else can.

This handy sharpener is a state-of-the-art tool that will sharpen both sides of your knife at the same time, and its sharpening angles range from 10 degrees to 30 degrees. Using and controlling this sharpener is easy, thanks to the interlocking abrasive wheels it comes with.

But, you’ll do well to observe caution when using it as it tends to overheat when used for long periods of time. Plus, the plastic inner components are not as durable as the outer parts.

Another feature worth mentioning on this sharpener is the adjustable angle guide which you can control through the ideally located knob. This allows you to adjust the abrasive wheels so that it’s easy for you to control the machine during the sharpening process.

Pros:

The machine guides your hand for easy operation thanks to the control knob
Versatile enough to work for serrated and straight edge blades
Comes in two options; ceramic and diamond
Features effective interlocking wheels

Cons:

Tends to overheat
It’s not very durable

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9 – Chef’sChoice 120 Diamond Hone EdgeSelect Knife Sharpener

Here’s another excellent knife sharpener from the renowned Chef’s Choice brand. This compact and stylish model offers a three-stage sharpening system that’s easy to use for even the most inexperienced users. Sure, handling this machine takes some getting used to but once you’ve “broken it in” you’ll find that it’s a breeze to use it.

It has diamond coated sharpening wheels that offer excellent precision. The three-stage process starts with super-rough edges, while stage two will give your knife the touch-up it needs for your knife to cut cleanly again, and lastly, the finishing touch comes through stage three.

Pros:

You can use this sharpener on a variety of different blades, including serrated, outdoor and kitchen knives
Leaves knives with a sharp and clean edge thanks to the stropping and polishing step
Comes with diamond abrasives
Provides high-quality sharpening
Features a three-stage sharpening process

Cons:

Doesn’t offer adjustable angles and only stops at 20 degrees
It’s a bit difficult to use at first

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10 – Secura Electric Knife Sharpener

The Secura Electric Knife Sharpener offers superb performance and it’s easy to use. It only comes with a two-stage sharpening process that works on a versatile number of knives.

During the first stage, this sharpener takes a blunt blade and gives it a nice sharp edge. For the second stage, it hones the blade into a multi-tasking and versatile blade that will slice through vegetables, fruit meat and anything else you throw at it.

Although this sharpener only comes with a 1-year warranty, it will work wonders to keep your knives in top condition while saving you the money you would’ve spent on new blades to replace blunt knives. It’s worth noting also that this knife sharpener is comparable in quality to the Presto model featured above, and it’s quite long-lasting and durable too.

Although it’s cheaper than most, this sharpener can hold its own when put alongside Chef’s Choice and other pricier models. It offers superb blade precision to ensure that your knives keep their cutting edge for longer, while its accessible price tag makes it an attractive option for the budget shopper.

Pros:

Hones the blade with precision
Offers precise sharpening
Can reshape the knife’s angle and rejuvenate its edge
Offers a capable two-stage sharpening system

Cons:

It’s not well-made and not long-lasting at all

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Conclusion

PLAN - PRICE

Description

Shenzhen Electric Knife Sharpener

This sharpener is able to remove chips that are as deep as 1mm


Comes with two diamond abrasive sharpening stones


Detachable cartridge makes this easy to clean

Wusthof PEtec Electric Sharpener

Wusthof PEtec features a modern design


Can sharpen a blade to a 14-degree bevel angle to re-profile the knife


Comes with a three-stage grinding process

Smith's 50281 Electric Knife Sharpener

Versatile enough to work for serrated and straight edge blades


Comes in two options; ceramic and diamond


Features effective interlocking wheels

Chef'sChoice 120 Knife Sharpener

Creates a sharp & clean edge


Provides high-quality sharpening


Chef'sChoice 120 features a three-stage sharpening process

Secura Electric Knife Sharpener

Hones the blade with precision


Secura Electric Knife Sharpener offers precise sharpening


Can reshape the knife's angle & rejuvenate its edge

Nowadays, there’s no excuse to use a blunt knife with a dull edge when you have access to electric knife sharpeners that will keep your knives working like new. As you saw through the first section of this guide, the key to a good quality knife sharpener is a combination of factors, from having the right sharpening wheel and angle to providing you with sharpening guide that will make the process easier.

Our top pick from the options we’ve reviewed is the Presto 08810 model. This is by far the best rated knife sharpener as it offers a wide range of features at a reasonable price point. It offers a three-stage sharpening process and a coarse sapphire wheel for accurate grinding.

It can sharpen all types of different knives at different angles, thanks to the interchangeable guide, while the exceptionally fine grit will leave you with professional grade knives.

All told, this sharpener offers a precise edge thanks to its ceramic wheel which has a characteristic fine grit. This is the sharpener to get if you want a knife with a razor-sharp blade. The best part is that it comes at an attractive price point and it’s made from durable, long-lasting materials.

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