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Best Electric Knife Sharpeners of 2021

Tired of cooking with blunt knives? Easily take the effort out of knife sharpening with a chef-quality electric knife sharpener. We’ve reviewed the best here.

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Best Electric Knife Sharpener Reviews of 2021

Chef’sChoice Trizor XV

Chef’sChoice Trizor XV EdgeSelect Electric 3-Stage Sharpening System

Best professional knife sharpener

This 3-stage sharpening system produces flawless and long-lasting results and is perfect for chefs.

Check price on Amazon

1 Chef’sChoice Trizor XV Review

Discerning chefs looking for the best electric knife sharpener can’t go wrong with the Chef’sChoice Trizor XV. This knife honing tool can make your knife blades razor sharp in under a minute, thanks to its 3-stage sharpening system.

Besides flawless sharpening, we like that it’s calibrated to 15 degrees, so all you have to do is to place the blade perpendicular to the worktop and let this machine do its magic.

This electric knife sharpener is not only easy to use; it’s also easy to maintain and works with all kinds of knives, including double-beveled and one-sided – an excellent choice for professional cooks and busy kitchens.

Best value
Work Sharp Knife WSKTS-KO-W

Work WSKTS-KO-W Sharp Knife & Tool Sharpener Ken Onion Edition

Best sharpener for knives and tools

It may look complicated, but it’s really easy to use once you’ve read the instructions.

Check price on Amazon

2 Work Sharp Knife WSKTS-KO-W Review

The Work Sharp Knife might just be the best electric knife sharpener for novices and pros alike. Although it looks intimidating at first glance, it is really easy to use and lets you sharpen not only knives but also tools at the desired angle.

Adjustable speed control from 1,200 to 2,800 SFM makes it perfect for anything from honing to high-speed grinding.

We particularly like that it needs no setup or calibration time, so you can start using it straight out of the box. Three sets of instructions – each very comprehensive – also explain how to use it for various purposes. Perhaps not as fast to use as our best in class, this electric knife sharpener is more affordable and perfect for domestic or recreational use.

Also great
Chef’s Choice 290

Chef’s Choice 290 Diamond Hone Knife Sharpener

Better value for experienced sharpeners

This sharpener offers two sharpening angles for all your straight-edged knives, but it requires manual sharpening know-how.

Check price on Amazon

3 Chef’s Choice 290 Review

Another “diamond” in the rough from the Chef’s Choice company is the Chef’s Choice 290 Hybrid AngleSelect. It may be a little rougher on the eyes than the best-value electric knife sharpener, but it won’t be any rougher on your knives.

The AngleSelect is just as or more versatile than the 120, with the bonus ability to switch between 15-degree and 20-degree angles. This means—you guessed it—it does just as good a job on Japanese knives as it does on European and American ones.

Like the Chef’s Choice 120, it’s also got diamond abrasives in all three sharpening stages and a helpful polishing step in the final stage. It seems to sharpen kitchen knives and outdoor knives to the same high standard with little to no scuffing.

Why the second-place spot, then? Good question. As its name suggests, the Chef’s Choice 290 is a hybrid unit; that means that stages one and two offer the automatic convenience most people are looking for, but the third stage is manual. This is great for those who crave customization but not so good for the hands-off user, which means its market is a little limited.

Still, the Chef’s Choice 290 does a stellar sharpening job at an impressive price point with a high level of customization available, so it’s one of the top electric knife sharpeners available.


  • The 15- and 20-degree angle options are helpful for those with many knives.
  • It produces a burr-free edge for greater precision.
  • The sharpening disks are undeniably high-quality—and fast.
  • Three stages make it easy to get just the right edge on every knife.


  • The hybrid design could require more effort than some users would like.
Best budget
Presto 08810

Presto 08810 Professional Electric Knife Sharpener

A great entry-level option

The Presto has many customization options, including multiple stages and angles, but its results are a little rougher than other models.

Check price on Amazon

4 Presto 08810 Review

Just because you’re on a budget doesn’t mean you don’t need sharp knives. The Presto 08810 sharpens knives to a high standard at an extremely low price point.

It has three sharpening stages (although you likely won’t want to use the first one unless you have a totally dull knife—it takes off a lot of your blade). It’s utterly unclear what the wheel abrasives are made out of—which is important to some—but they work well and sharpen with little to no scuffing. The final stage does a satisfactory job of honing, too.

Its true selling point, though, is the fact that it offers adjustable angles—three, to be precise. Of course, it would be helpful to pro chefs to know what the degree measurements are (they’re not listed), but the lowest angle is sufficient for fillet knives, the middle angle for steak or carving knives, and the highest for large implements like cleavers. It’s capable of sharpening everything from serrated to European and Japanese knives because of this very feature.

If you’re a professional chef or if having these few missing details is important to you, the Presto may feel like a risk. Still, for most home kitchen uses, the Presto is fool-proof to use and gets the job done well.


  • Adjustable angles are a huge boon for people with a large knife collection.
  • The Presto has three stages.
  • It can be used on outdoor knives, kitchen knives, and a variety of knife designs.


  • The sharpening wheels may not last as long as higher-end ones.

1. Why buy an electric knife sharpener?

The mechanics of electric knife sharpeners are pretty straightforward—they do the manual sharpening work of water stones or handheld sharpeners with far less labor and expertise required on your part.

They are an excellent option for home chefs and outdoorsmen who don’t need total customization and control in their sharpening (but still need consistently high-quality results).

Unlike manual devices, electric knife sharpeners have:

  1. A much quicker sharpening time: Higher-end models can have your knife gleaming in seconds.
  2. A more hands-off approach: You need less knowledge about angles and other technical aspects of knives to operate them.
  3. Guides: Many electric knife sharpeners offer pre-set angle guides so you can choose the right cut for your knife.
  4. Greater safety: It is far more difficult to cut yourself on an electric knife sharpener.

Of course, not all electric knife sharpeners are created equal. Before you buy, brush up on differences in performance, abrasives, angles, and other sharpening basics.

2. Are your knives serrated or straight?

This is one of the easiest ways to knock a few electric knife sharpeners off the list. Many sharpeners can actually ruin your serrated knives. Make sure to choose one that specifically advertises the ability to sharpen serrated knives if you have both serrated and straight blades in your repertoire.

3. Electric knife sharpener blade angles

Your knife’s angle is the angle at which each side of the edge of the blade is sharpened. Kitchen knives are typically sharpened to 15 or 20 degrees per side (and these are usually the options you’ll find in electric knife sharpeners); meanwhile, knives that need to be stronger than they are sharp (such as some outdoor knives) usually measure in at 26 degrees or more.

Knife style matters

Asian-style knives are better-suited to 15-degree angles and European or American styles to 20-degree angles, so make an honest assessment of your collection before taking the plunge on a sharpener.

Angle, sharpness, and strength

Remember that the greater the angle, the stronger but duller the blade will be. So a 15-degree knife is sharper but weaker than a 20-degree knife. Use the general measurements below to give you an idea of the angles you’ll need.

  • 17 degrees or less: These are precision-oriented kitchen knives, such as paring knives.
  • 18-25 degrees: These are your standard kitchen knives. Think carving knives and chef’s knives that you use for cutting things like meat and veggies. They offer a balance of sharpness and strength.
  • 26-30 degrees: These won’t fit the bill in the kitchen, but their strength is ideal for hunting and outdoor use.

4. Single-angle vs. multi-angle knife sharpeners

In addition to offering different angles, electric knife sharpeners also offer different numbers of angles.

Single-angle knife sharpeners

Electric knife sharpeners are primarily geared toward standard kitchen knives and, as such, often offer only one of two angles (15 or 20).

Multi-angle knife sharpeners

However, many have built-in angle guides for a variety of knife types, which allows for easy customization. These options typically range from 15 to 25 degrees.

Which is right for you?

If you need greater versatility, opt for one of these “adjustable” electric knife sharpeners; but, if standard suits your uses fine and you won’t notice the difference in angles, a 15- or 20-degree sharpener will still produce excellent results—and often comes with a lower cost.

5. Best knife sharpener materials

There are two primary knife-sharpening materials.

  1. Diamond is the hardest surface known to man, and its abrasiveness is also ideal for knife sharpening. This is the fastest option when it comes to sharpening. Don’t worry, these knife sharpeners don’t cost thousands—it’s the polished, cut stones you see in jewelry that are the expensive ones.
  2. Tungsten carbide is a middle-of-the-road option in terms of hardness and speed. If you’re not a discerning sharpener, you may be able to save a few dollars with this functional and capable material. However, it’s rare to find tungsten carbide alone in an electric model: It’s usually combined with something like diamond.

The bottom line? If you’re a discerning chef or even a serious survivalist, it’s worth the very slight splurge on a diamond knife sharpener. However, if you just need something to sharpen, period, you may be able to save a few dollars by going with one of the more modest options.

6. Electric knife sharpener stages

Knife sharpeners come with 1 to 4 stages, or levels of sharpening, with one being the coarsest and 3 or 4 being the finest (and most precise).

When to buy a 1-stage sharpener

Be careful: Although one-stage sharpeners will be cheaper (and you should usually pass over them if they’re not), they typically only provide a coarse treatment. That means they remove a lot of metal and don’t allow for any customization of your “cut”.

However, if you work with less expensive knives, only sharpen your blades when they’re totally dull, or only need something for outdoor slicers, a one-stage sharpener will suit you just fine. Just don’t expect that nice, shiny finish provided by a 3- or 4-stage sharpener.

When to buy a 2-stage sharpener

These models will provide you with a “coarse” and a “fine” setting suitable for most kitchen-knife users. You won’t be able to finely hone your sharpening session for each knife, but you will have some control over how much metal you take off and how precise the end result is.

Plus, you can use the finer option for a quick “polish” and the courser option for more thorough sharpening.

When to buy a 3- or 4-stage sharpener

These are useful for anyone, but novices should be prepared for a learning curve as they hone their skills—and everyone should be prepared for a slightly higher price tag.

Benefits abound

These more versatile options are the only real options for professional or serious chefs and knife enthusiasts. They’re also the only options that allow you full customization of the sharpness of your various blades. Additionally, you can do a seconds-long touch-up on sharpness before chopping up dinner ingredients as easily as you can dive in to a multi-stage sharpening of a totally dull specialty blade.

If versatility is your game, splurge on a 3- or 4-stage sharpener.

7. Additional features

Electric knife sharpeners are pretty simple machines by design—they do only have one job, after all. But many come with a few icing-on-the-cake features that really take them to the next level.

  1. Stropping: If you’re looking at a 3- or 4-stage sharpener, you may notice that it boasts a “stropping” feature on the final stage. All this really means is polishing your blade and refining your edge after micro-abrasions and tiny grooves are created during the sharpening process. This provides a more professional and precise end result.
  2. Deburring: This feature is usually built in to the final stage of a 3- or 4-stage sharpener. Burrs are inconsistencies in your knife’s edge created by the sharpening process, and you really don’t want them to stay put if precision and consistency are what you’re after!
  3. Hybrid design: Some may like this design, while others will detest it. Either way, this is another multi-stage-only option that has 2-3 electric (read: automatic) stages and 1-2 manual stages (meaning the machine won’t do the work for you) that allow you to customize the finishing process. This can save the discerning chef a few dollars and definitely provides a bit more of a hands-on feel. Plus, you don’t have to turn on a potentially loud machine just for a few polishing strokes.
  4. Spring guides or spring systems: These adjust the angle at which the knife is held in the sharpening slot to its individual size, so there’s less risk of botched guesswork or your own movement leading to a less-than-ideal edge.

8. Buying tips

Now that you understand the many different features of knife sharpeners (and, for some, what is considered the art of knife sharpening), we come to the crucial question: Which one will fulfill your needs without breaking your budget? Whether you’re looking for simple and bottom-dollar, mid-range and versatile, or a top-notch all-in-one tool, this checklist has you covered.

Crucial features for a good budget knife sharpener

  • It’s recommended to step up to a 2-stage sharpener for all kitchen uses.
  • Single-angle sharpeners are more than sufficient for most cooks.
  • Go for a non-diamond sharpener if it can save you a few bucks.

Great features in a quality, mid-range electric sharpener

  • Splurge on a 3-stage sharpener to cover all your cutting needs.
  • Look for tungsten, diamond, or combo sharpeners to get the most bang for your buck.
  • Prioritize finding a sharpener that can also handle serrated knives.

High-end features for a professional electric knife sharpener

  • Look for at least 3 stages and preferably 4 for ultimate versatility.
  • Diamond is a must-have for that precise, polished end result.
  • Adjustable angles will help you customize the cut to the knife.
  • Stropping and deburring features help you achieve ultimate perfection in a knife.

9. The Best Electric Knife Sharpener for the Money

Best value
Work Sharp Knife WSKTS-KO-W

Work WSKTS-KO-W Sharp Knife & Tool Sharpener Ken Onion Edition

Best sharpener for knives and tools

It may look complicated, but it’s really easy to use once you’ve read the instructions.

Check price on Amazon

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