Electric knife sharpeners are the most convenient method of maintaining razor-sharp knives in the comfort of your own home, however other methods, such as basic sharpening stones or ceramic rods, are available. With the touch of a button, even the dullest blades can be restored to their original sharpness with one of these sophisticated tools.
While all electric knife sharpeners are designed to restore the edge of dull knives, some are better suited to certain blade materials, such as ceramic or Japanese-style knives, while others are pre-set to sharpen a wide variety of blades. In addition to knives, some models can hone scissors and other instruments like screwdrivers and clippers.
We consulted actual buyers of these electric knife sharpeners to help you choose the best model for your home kitchen. Below you’ll find a selection of products that have received unanimous praise from consumers and critics alike. The Presto EverSharp Electric Sharpener is our top pick because its precision blade guides ensure that your knives are always sharpened to the perfect angle.
These 10 electric knife sharpeners, ranging from a professional-grade model to an economical alternative and a beginner-friendly one, will keep your knives in great form.
Top 10 Electric Knife Sharpener Consumer Reports: Editor Recommended
The 10 Best Electric Knife Sharpener Consumer Reports Review:
1. Presto 08800 EverSharp Electric Knife Sharpener
- Sharpen kitchen and sport knives to a razor-sharp edge fast and economically.
- Easy 2-stage sharpening system for professional results at home on most any...
- Sapphirite sharpening wheels grind a precisely angled edge then fine hone and...
- Sapphirite sharpening wheels are made of the same ultra-hard material used in...
- Precision blade guides hold knife at the perfect angle.
This could be the best option if you have a number of knives and want to preserve them in good working order but don’t want to leave the Zorro trail behind you. Those with modest requirements and limited financial resources can benefit from this solution because of how cheap it is.
Both the coarse grinding wheel used in the first stage and the fine honing wheel used in the second stage of this sharpener are covered with sapphire. Since most ordinary kitchen knives need to be sharpened to an angle of 20 degrees, the guidelines come pre-set at this angle.
If you have a smooth tabletop, you can attach it there with the help of the three suction cups located on the base. You’ll need to come up with a plan B if you have a tile or butcher block counter and need to work there.
Two containers, one beneath each sharpening wheel, collect the scrap metal as it is removed from your blade.
This sharpener has some issues with serrated blades, which is a major drawback. Knives with a single serration are fine, but the Presto 8800 won’t accept any with two.
Knives should be inspected before this or any other sharpener is used.
- Easy to use
- Lightweight and compact
- Two stage process
- Not suitable for all serrated blades
- Three stage is better for higher-end knives
- Can’t sharpen Japanese knives
2. Villini Knife Sharpener
- ✅ 3-in-1 ELECTRIC SHARPENER: Amolador de Cuchillos / GA Knife Sharpener for...
- ✅ 2 STAGE MULTI-ANGLE KNIFE SHARPENER: Engineered to both hone and polish...
- ✅ SMALL & COMPACT SHARPENING MACHINE: Featuring a new patented design, our...
- ✅ MINIMUM EFFORTS, FAST RESULT: Stop fumbling around with that clunky old...
- ✅ GA KNIFE SHARPENER ELECTRIC: It’s good knife sharpener, it’s the best...
Even while knives are the most common type of sharp object in the kitchen, they are not alone. Many households put their scissors to good use, while slot screwdrivers are so versatile that they show up in unexpected places.
It would be convenient if all these tools could be maintained by a single machine.
Despite its small size, this sharpener packs quite a punch. It weighs only slightly more than 1 pound and has a tiny 5.5″ diameter. Unbelievably, it has space for not one but two sharpeners: one for knives and another for both scissors and screwdrivers. Impressive!
The maker states that it can sharpen both Western and Japanese knives, but not serrated ones. There is a coarse setting for rough work like sharpening and restoring edges, and a fine setting for giving everything a final polish. Screwdrivers and scissors can both be stored in a narrow slot. When not in use, the cord can be stored neatly within the device.
It is to be expected that a rapid motor housed in a compact casing will generate a lot of heat. Because of this, you shouldn’t use it for more than three minutes straight before giving it a rest to cool down. Keep a hand on the unit for stability, which may feel a little strange at first.
While this isn’t the best sharpening for your prized kitchen knives, it will do the job for most of the other blades you keep in your drawer.
This tiny guy is cheap enough that you should keep one on hand for quick sharpening tasks.
- Sharpens more than just knives
- 2-stage process
- Retractable cord
- Can’t sharpen serrated blades
- No catch tray for filings
- Needs to be hand-steadied
3. Chef’sChoice Trizor XV EdgeSelect Professional Electric Knife Sharpener
- CONVERT YOUR KNIVES: Ideal for converting traditional 20-degree factory edges of...
- DIAMONDS: Advanced stropping stage and 100 percent diamond abrasives for...
- EASY TO USE: Advanced, patented flexible spring guides for automatic adjustment...
- THREE STAGES: 3-Stage EdgeSelect sharpening system for optimum versatility in...
- RAZOR SHARP: The 15 Trizor XV combines the strength and durability of the Trizor...
You’ve done your homework and know that Japanese knives are essential for the greatest barbeque preparation and service. Still, you’re worried that the effort required to ensure that their 15-degree angles remain in pristine shape is more than you can manage.
You need a quick and easy method to maintain a sharp knife without having to hire a professional or devote a full day to sharpening it on whetstones at home.
Fortunately, there’s the Trizor XV to help you out. The correct answer is 15 degrees, or XV in Roman numerals. Only Japanese knives can be sharpened with this high-quality tool. Actually, that’s not quite right; the Trizor can process 20-degree blades, but it’ll turn them into 15s. What a clever strategy!
This system employs a three-step procedure to provide a razor-sharp edge.
In the first two steps, diamond-coated conical spinning discs do the sharpening and honing. In the third and last stage, called “stropping,” flexible discs are used to further refine and polish the edge. The manufacturer recommends playing around with the three phases to get the perfect edge for each task.
The Trizor XV may be used to sharpen both straight and serrated knives. Both single- and double-bevel blades can be sharpened. All of your Japanese knives will fit nicely in this sharpener.
The Trizor XV EdgeSelect is a great addition to any collection of Japanese knives, especially if you consider yourself a kitchen ninja. Keep in mind that your 20° knives require a different sharpening unless you want to risk ruining them by re-angling them.
- 3-stage system
- Correct sharpening angle for Japanese knives
- Diamond-crusted sharpening wheels
- Sharpens serrated knives
- Not for 20 degree blades (unless converting to 15 degree)
- Rather large (12” x 6.2” x 6.4”, 4.5 pounds)
4. Knifewizard I.O.Shen Nirey Knife Wizard Electric Sharpener
- Contains two spring loaded grinding wheels which apply pressure to blade....
Japanese manufacturer I.O.Shen is known for producing high-quality knives tailored to the needs of customers in English-speaking countries. They’re Western-preferred in size and weight, and they feature the western-preferred balance and sharpness of Japanese steel.
Since they are the best Japanese knife manufacturer, it seems sense that they also provide a matching sharpener. The I.O.Shen electric sharpener has a two-stage process that will bring any 15-degree Japanese knife to a razor’s edge.
This tool can automatically adjust to sharpen blades of wildly varying thicknesses thanks to its two sets of spring-loaded grinding wheels—one coarse and one fine.
It’s effective for sharpening knives with both straight and scalloped edges, but it can’t handle serrated knives with both flat and serrated sides.
- Easy to use
- Japanese made sharpener for Japanese knives — A perfect match.
- Spring-loaded grinders to accommodate different blade thicknesses
- 2-stage system, coarse and fine, for severely blunted knives and finishing to a high sharpness.
- Very fast sharpening.
- Only for 15-degree Japanese knives, not suitable for most ‘standard’ western angles blades.
- Can’t sharpen double-sided serrated knives (not many electric sharpeners can!)
5. Chef’sChoice 2000 Commercial Diamond Hone Electric Kitchen Knife Sharpener
- A commercial sharpener for 20 degree class knives, designed to meet the needs of...
- Fastened diamond abrasives for hair-splitting sharpness, in seconds
- Easy to use
- Detachable sharpening module removes easily for cleaning in dishwasher or sink
- Sharpens straight edge and serrated knives
If you own a restaurant, your knives are more than a pastime or an accessory to show off to customers; they’re essential to your livelihood.
You can’t afford to be careless with your time and you don’t have time to wait for your knives to be sharpened by an expert. Is there an effective method for honing skills in-house?
I would not have asked if I didn’t think the answer was yes. Without breaking the bank, the Diamond Hone 2000 appears to be the ideal option for your commercial/industrial quality knives.
There is no denying the power of this apparatus. It’s a foot and a half in length and weighs a whopping 12 pounds. The sharpening wheels covered in diamond abrasives require a strong motor to turn. It’s a 2-step technique, so you can’t expect perfection, but you will achieve a really sharp edge in a short amount of time.
Commercial kitchen knives get heavy use and dull quickly; this machine will sharpen them quickly and efficiently so they can get back to work.
The equipment can process a wide variety of blades. The Diamond Hone 2000 is capable of sharpening a wide variety of knives, including Japanese, serrated, butcher, and filleting blades. This is the place to get all of the knives in your professional kitchen sharpened at once.
In the case that you do wear down the sharpening surface, a new cartridge can be purchased from the maker. After eight years, according to one reviewer, he finally did. However, as another reviewer put it so eloquently, “It makes blades insanely sharp.”
I can’t say for sure how sharp it is, but it certainly sounds keen.
This model is only suitable for business use and is not intended for home use unless you have a strong interest in sharpening knives.
Although the initial investment may appear high, the time and money saved compared to sending knives out to be sharpened should quickly recoup the initial cost.
- Diamond-crusted sharpeners
- High-power motor
- Handles all knife types
- Big and heavy
- Only two stages
6. Work Sharp Knife & Tool Sharpener Ken Onion Edition
- ADJUSTABLE SHARPENING GUIDE- produce precise edge bevels from 15 to 30 degrees....
- VARIABLE SPEED MOTOR- handle every sharpening task, from grinding to honing....
- PREMIUM FLEXIBLE ABRASIVE BELTS- deliver a strong, long lasting razor-sharp...
- FAST, PRECISE, and REPEATABLE- sharpening results with no set up or calibration...
- PROUD TO BE AN AMERICAN COMPANY- Work Sharp is part of Darex, a 4th-generation...
Ken Onion was designed in partnership with a master knifemaker to combine professional quality and beginner-friendly features. Onion, Ken If Ken Onion Shun’s name is on a sharpener, it’s top-notch. This device won because it blends professional quality with home cook-friendly features and considers the intricacies that can make or break your blades.
Ken Onion’s sharpening area is open, so you can see what you’re doing (and therefore learn better sharpening techniques as you go). It cools knives like water-based models (so no need to worry about warping or friction-induced damage). This feature prevents you from shaving off too much metal, a common problem with electric sharpeners. This sharpener has four specific, high-quality grit levels. You’ll know you’re using the right abrasive to keep your knives safe and functional.
This sharpener’s adjustable angle guide is another plus. Other versions may sell these separately or not include them at all, but the Ken Onion has them built in and ready to accommodate Western and Japanese knives with a 15-30 degree range. Plus, an edge guide helps you to quickly set your favorite angle and maintain it consistent as you sharpen, which is better to a sharpener that you can’t adjust or a whetstone that relies on your memory. If the price seems excessive, consider that it has a greater speed setting for tools. This model rivals professional knife sharpeners.
- Won’t shave off too much metal
- Functions with angle guides for accurate sharpening
- Multiple grit levels
- Accommodates most knives and tools, too
- Slightly more intimidating than a typical pull-through sharpener
- No mechanism to catch shavings—a little messy
7. Wusthof Electric Knife Sharpener – Easy Edge Sharpener for Kitchen Knives
- Simple one-touch pre-programmed controls guide you through 3 sharpening stages...
- Use the Shape button if your knife is very dull or has damage to repair
- The Sharpen button exposes a fresh cutting edge, monthly
- Use Refine to maintain your edge weekly
- Made in USA with a 3-year warranty; 7 x 4.5 x 5" tall
With controlled sharpening cycles and an inbuilt vacuum, this sharpener is perfect for beginners. Knife sharpening is intimidating if you don’t know where to start. While electric sharpeners do much of the job, a few extras can make your first time easier. This Wüsthof model helps. Three sharpening cycles shape, sharpen, and refine blades.
The machine automatically shuts off after each cycle, which is helpful for novices. Medium-grit belt fits all three sharpening modes by moving at different rates. As beginners learn more about sharpening, they can buy extra belts with different grit levels to customize their experience. When you’re done, an internal vacuum system collects metal shavings so they don’t scatter.
Price-wise, it’s a bit steep (especially for a knife rookie), but it simplifies the process so much. It works on any knife, even serrated ones, so you won’t need a separate sharpener for your bread knife.
- Three pre-programmed, timed cycles
- Suitable for all blades (even serrated)
- Internal vacuum system
- Interchangeable angle guide
- Only one grit level (additional sold separately)
8. Work Sharp Electric Culinary E2 Kitchen Knife Sharpener
- Push of a button - fully guided sharpener that automates the sharpening of your...
- Sharpen dull knives with premium abrasives and maintain sharp edges daily with...
- Professional level sharpness - designed to sharpen The highest-quality knife...
- Sharpens kitchen knives, serrated edges, scissors and shears.
- 3 Year warranty
This sharpener is ideal for people who don’t know where to begin using a sharpener because it does so much for them. Knife sharpening can be a daunting task if you don’t know where to begin, and we get that. While electric sharpeners in general handle a lot of the work for you, it’s still good to have a few spares on hand for your first time using one.
There’s the Wüsthof model that’s been all decked out for that purpose. It has three distinct sharpening cycles that may be used to hone, shape, and polish your knives. There’s no need for novices to predict when to move on to the next cycle because the machine turns off after each set. The medium grit belt included works with all three sharpening settings because of its variable speed.
While this may be fine for novices just getting started, more advanced users can always buy additional belts with progressively finer grits to better tailor their sharpening experience. When you’re done, the annoying metal shavings are sucked away by a special vacuum system inside the device.
While the price may seem steep (especially to someone who has never had a knife before), we believe it is well worth it for anyone interested in picking up the hobby. Plus, it can be used on any knife, even serrated ones, so you won’t have to buy a separate sharpening for your favorite bread knife.
- Suitable for all kinds of knives and kitchen shears
- Timed sharpening cycle
- Gentle touch
- Hones blades as well as sharpens
- Only one sharpening speed
- One grit level
9. Kai House The sharpener [AP-5301] electric knife sharpener
The angled slots in the Cube make it easy to keep the sharp edges on your Japanese knives. To those in the know, Japanese knives are in a class all their own thanks to their sleek designs and razor-sharp blades. And unique knives like this should be handled with care.
The angle instructions on the Kai Cube sharpener are pre-set at 16 degrees, just right for Japanese knives (as opposed to the wider angle of Western knives), so there’s no guesswork involved in keeping these blades in tip-top shape. By using discs fashioned from whetstone, this design can return dull blades to their original sharpness without removing too much material.
The finishing stone gives the blade a light polish, making it ready to slice through fish easily or mince herbs with precision. Plus, it’s small enough that you can keep a second sharpener in your kitchen for blades that aren’t Japanese without much trouble. You may have faith in the Cube’s quality because it is made by Shun Cutlery, a reputable manufacturer of high-end Japanese knives.
- Angle guides set for Japanese knives
- Compact size
- Gentle touch
- Singular grit level
- Not customizable
10. Presto 08810 Professional Electric Knife Sharpener
- Easy 3-stage sharpening system for professional results at home, anytime.
- Sharpens kitchen and sport knives, even Santoku knives.
- Blade thickness selector adjusts guides to optimum sharpening angle.
- Select thick for hunting knives, medium for chef's knives and standard kitchen...
- Blade guides hold knife at the perfect angle for no-guess sharpening.
Consider using this Presto option for sharpening if you have a variety of knives that need to be sharpened and the blade diameters range from little to large. In addition to having a sharpening system with three stages, it also includes three different blade settings, ranging from thin to medium to thick, allowing you to easily select the appropriate angle for the thickness of your knife. You can be sure that it will sharpen even the most dull knives because it utilizes a sapphirite grinding wheel, which is the same material that is utilized in professional shops.
- Sharpens knives up to 3″ wide
- Three blade settings to choose from: thin, medium, and thick
- Grinding wheel is made of Sapphirite material for sharpening even the dullest blades
Things to Consider Before Buying an Electric Knife Sharpener
When shopping for a sharpener, try to choose one that has a fine-tuning angle adjustment or an angle finder. You must be able to modify the angle of your sharpener to meet the unique needs of each knife’s cutting edge. If the blade is sharpened at the wrong angle, the blade’s geometry will be altered, increasing friction and decreasing cutting efficiency. Similarly to how you wouldn’t use a cleaver to cut sashimi, you also wouldn’t want to sharpen a Western-style knife to the narrower angle of a Japanese knife.
b) Grit Progressions
A knife sharpener with a variety of grit options is recommended so that you may fine-tune the sharpening process. Sharpeners that use high-level abrasives to just rub against the blade are not what you want. Instead, it should slowly and carefully hone your edge until it’s razor sharp, starting with a coarse grit and working its way up to extremely fine grits.
c) A Gentle Touch
Bad electric sharpeners have the same problem as poorly maintained wood chippers: they remove metal too rapidly and forcefully, effectively turning your knife into a splinter. Make sure the sharpener has more than one speed or setting; single-speed devices are often too rough, and higher-quality sharpeners allow you to vary the angles to adapt the machine to the blade you’re using.
d) Temperature Regulation
Because of the potential for high levels of power and friction in electric sharpeners, they are not without their drawbacks. Overheating the edge due to friction can soften or damage it, as knives are heat-treated at specific high temperatures to harden the steel, then tempered at a lower temperature to make them harder. Those who are more experienced in the art of knife sharpening may wish to consider a model that includes water, which aids in keeping the metal cold during the sharpening process. Try a tamer setting or different model if that seems too intense.
Geoff Feder, a knife expert and artist, addressed our most pressing concerns about knife sharpeners. He founded Feder Knives, which makes beautiful handcrafted knives for the culinary industry and beyond, by combining his knowledge of blacksmithing, art, and cooking.
i) How will I know when a knife needs sharpening?
According to Feder, “sharpening” is the process of removing steel from the cutting edge in order to restore a sharp wire edge that does the actual cutting. You’ll notice this when you’re wiping down your knife and the towel gets snagged on a burr at the edge. This protrusion is the result of rolling over the wire’s edge, which forms a burr. This knife’s wire edge contributes to the blade’s sharpness and its ability to cut through food. In the event that wire edge is flipped over, it loses its sharpness, it may become dull.
ii) What is the best way to sharpen knives at home?
If you’re new to sharpening knives and are nervous about using a free-hand method, an electric knife sharpener is a terrific option. Feder suggests switching to a whetstone once you’re familiar with the basics of knife sharpening. The most important thing is to have a consistent regimen for caring for your knives. The time it takes to sharpen a knife depends on how dull it initially is, he says. This is like to tending to a grass. It’s easier if you do it frequently. Feder adds that a short touch-up with a ceramic honing rod between sessions is preferable to excessive sharpening. “I’m always amazed at how a few modest meticulous swipes on these can extend the sharpness period on knives,” he says. How long a knife keeps its edge depends on the quality of the steel it was made from and how hard it is.
iii) Are knife sharpeners bad for knives?
Not at all, according to Feder. Every time a knife needs to be sharpened, the user must be of the thought that some metal must be taken away. Maintaining some level of sharpness will result in gradually removing less material, extending the useful life of the knife and increasing the pleasure you get from using it. The knife’s geometry can be altered if you wait until it becomes dull and a new edge must be established frequently. A knife’s edge can be maintained with less effort and for a longer period of time if it is sharpened on a regular basis.
iv) Do professional chefs use electric knife sharpeners?
Feder confirms the existence of high-end electric knife sharpeners with rotating stone wheels that are partially submerged in water. A constant stream of water from the wheel’s rotation cools the blade. They use angle finders to place rails and guides that keep the knife in the ideal position for cutting. They have a variety of wheels ranging from coarse to fine grit that may be used to polish the edge. Micro burrs are removed thanks to leather stops. They’re pricey, but they get the job done.
v) What do professionals use to sharpen knives?
When it comes to maintaining knife sharpness, “most competent chefs and cooks understand how to utilize whetstones and have a regimen,” adds Feder. He does, however, point out that not every chef need equally sharp knives. “Prep kitchens that, often times, do the brunt of the cutting work will use less expensive knives and need them sharp and sharpened quickly to keep up with the onslaught of products coming in every day. This includes chopping carrots for mirepoix, shaving onions for a batch of caramelized bacon jam, and working through five cases of butternut for soup. Shaved duck prosciutto and raw fluke aren’t the only options.
The Worksharp Ken Onion topped our ranking because of its high professional quality and user-friendly features for newcomers. Sharpening may be done without much guesswork or physical labor thanks to the inclusion of angle guides and a range of grit levels.