10 Best Electric Knife Sharpeners 2020

Regardless of whether you’re a hiker in need of a sharp knife out on a trail or just need a sharp knife in your kitchen, sharpening your knives is an important part of maintenance. Many professionals and knife enthusiasts prefer to work on a sharpening stone, but sometimes you don’t have the time that using a stone will typically take. With that in mind here are the top ten Electrical Knife Sharpeners that you can purchase on market.

Like with any product, you want the best possible bang for your buck. So how do you determine which is the best sharpener for you? Well, that depends on you and your needs but in general, if a product has a 4.5 to a 5-star rating and/or good reviews then that’s the one you should buy.

Another determining factor is, of course, the price point. You want something that’s good quality and that won’t fall apart after only a few weeks.

On the other hand, you don’t want to spend too much money on a tool that you’re only going to use once or twice every few months.

Best Electric Knife Sharpeners

Top 10 Best Electric Knife Sharpeners

ModelRating
Firestone Electric Sharpener4.5
Wandisy Multi-Functional Sharpener for Straight Knives and Scissors4.6
Chef’s Choice 100 Diamond Hone Electric Sharpener4.5
Chef’s Choice 325 Professional Diamond Sharp4.6
PentaBeauty Grocery Art Electric Sharpener4.8
Chef’s Choice Precision Edge4.5
Chef’s Choice 320 FlexHone4.7
Presto 08810 Professional Electric Knife Sharpener4.7
EdgeKeeper Electric Knife Sharpener4.6
Work Sharp Knife & Tool Sharpener Ken Onion Edition4.8

1. Firestone Electric Sharpener

The Firestone Electric Sharpener is an electric pull-through sharpener and it is a very simple piece of equipment to use. Plug it in and switch it on, from there you pull the blade from the bottom of the cutting edge – just above the tang – to the point of the knife.

This sharpener weighs 2.4 pounds and runs counter-rotating ceramic sharpening wheels to put an edge back on all your knives.

Product Specifications

  • Black plastic case with red trim
  • Dimensions: 5 ¾ x 4 ¾ x 3 3/8 inches
  • Weight: 2.4 pounds
  • Automatic positioning
  • Aluminium-oxide-enhanced counter-rotating wheels
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Simple to use
  • One-step sharpening process
  • Compact  and portable
  • Quick sharpening

Cons

  • The angle is set which means that your blade’s edge will always be in one place and depending on the knife that may or may not be what you want
  • A more common problem with electric sharpeners is that they will often remove more blade material than necessary
  • May leave some nasty scratches on the blade

2. Wandisy Multi-Functional Sharpener for Straight Knives and Scissors

If you have a variety of blades and tools that need to be sharpened, then this would be a good sharpener for you.

The Wandisy Multi-functional Sharpener is made from durable, high hardness metal that will last and give perfect sharpness every time. It has an adjustable angle making it a versatile sharpener for all your needs. You can sharpen all your fine-edge kitchen knives, scissors, plane cuter, drill bits, cutters, and knives. It is a larger tool so you will not be able to carry it around with you, and it may be quite loud.

Wandisy is committed to bringing only the best products to the market. They back their quality products up with an excellent customer service department for any issues that may arise.

If you have an issue, Wandisy offers a money-back guarantee.

Product Specifications

  • Material: Plastic + Metal
  • Color: As shown in picture
  • Size: 6.4 x 5.6 x 6.1 inches
  • Weight: 3.31 pounds
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Sturdy construction
  • Multi-functional; can be used to sharpen knives, scissors, and drill bits
  • Adjustable angles: you can sharpen equipment at different angles as needed without difficulty
  • Sharpening is quick and easy

Cons

  • You won’t be able to carry this sharpener around without some significant difficulty
  • The use is limited to fine-edge knives
  • If you need to sharpen a serrated knife, you’ll need a different sharpener
  • You can easily grind your blades down
  • This looks like it’s a table-mounted unit which means that it will likely take up a significant chunk of space on your countertop

If you need an electrical sharpener and you don’t have a lot of money to spend on one; this is a quality, affordable option.

3. Chef’s Choice 100 Diamond Hone Electric Sharpener

The Chef’s Choice 100 is a 3-stage electrical sharpening system that comes with a two-year warranty. Stage 1 is pre-sharpening, stage 2 is the actual sharpening, stage 3 is honing.

Using it is simple, turn it on and run the blade of your knife from the bottom edge (above the tang) to the point through each of the numbered sections on the sharpener.

The system runs with magnetic guides that ensure that the edges remain sharper for longer.

Chef’s Choice is a popular brand and it is easy to see why. The sturdy construction means that it will last a long time. And the three-stage sharpening system puts longer-lasting edges on your knives so you will not have to sharpen them more than once or twice every few months. Its 100% diamond abrasives with the platinum housing are durable and give longer-lasting edges.

Product Specifications

  • Dimensions: 3.5 x 9 x 4 inches
  • Weight: 4 pounds
  • Trizor XV edge (15 Degree Class)
  • 100% Diamond abrasives with platinum housing
  • Magnetic guides
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Easy to use
  • Super compact
  • Sharpens knives quickly

Cons

  • Plain edge knives only, you can’t sharpen serrated blades on this one
  • You risk damaging the blade

If you’re worried about getting the angle on your blade right; they’ve got you covered there too. The system is designed so that your knife goes in at the right angle every time; no guesswork needed.

4. Chef’s Choice 325 Professional Diamond Sharp

The Chef’s Choice 325 is a two-stage sharpener that you can use to sharpen both plain-edge and serrated blades. It has an integrated spring guide system to eliminate all the guesswork involved in sharpening.

The Chef’s Choice 325 also has an integrated cleaning system for the sharpening disks. You can sharpen a knife between 15 and 45 seconds easily.

It is NSF certified and guaranteed to never detemper, it has a unique, patented stropping and polishing stage that will have your blades gleaming and blemish-free. It weighs about four and a half pounds so it’s not exactly a lightweight piece of equipment.

Product Specifications

  • 100% Diamond honing
  • Patented stropping and polishing stage
  • Cleaning system for abrasive disks included
  • Precision flexible spring guides
  • NSF certified
  • Sharpener for 20-degree class knives
  • Dimensions: 10.2 x 5.9 x 5.6 inches
  • Weight: 4.55 pounds
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Rapid sharpening
  • Easy to use
  • No guesswork involved in the sharpening
  • Can sharpen both plain-edge and serrated blades
  • Internal cleaning system on the disks keeps the system running smoothly
  • Nice and compact

Cons

  • Risk of damaging the blade: electric sharpeners take a lot of material off the blade when creating the new edge and unless you are incredibly careful you may end up damaging your blade
  • The price point is much higher than some of the other entries on the list which may put off potential buyers

5. PentaBeauty Grocery Art Electric Sharpener

This entry by PentaBeauty is a nice, budget-friendly option for those in need of an affordable knife sharpener.

The Grocery Art Electric Sharpener is a multi-functional system that can be used to sharpen knives, scissors and, get this, screwdrivers! It is a very affordable sharpener.

It’s relatively unassuming so you will not necessarily notice it – until you need it, of course.

I love the name, ‘Grocery Art’ it sounds like you are about to do some sort of sculpting or carving with your groceries, or is that just my imagination?

It is a two-step knife sharpener engineered specifically for straight blades.

Stage 1: This first step reshapes the angle of your blade while sharpening & refining its edges.

Stage 2: The second step hones and polishes knife and scissor blades, leaving them lustrously smooth.

Product Specifications

  • Three-in-one tool
  • Multi-angle
  • Adjustable angle
  • Multi-functional
  • Two-stage sharpening
Not 100% convinced, may not be suitable with specific types of blade, I recommend you do a bit more research

Pros

  • Compact, portable size
  • Multi-functional
  • Rapid Sharpening
  • Easy to use
  • Quick
  • Versatile

Cons

  • You risk damaging your blade/tool
  • It’s only compatible with plain-edge blades
  • The blade is prone to stalling if it isn’t correctly aligned
  • Not for professional-grade hard steel
  • Can be messy
  • Can leave burrs

6. Chef’s Choice Precision Edge

The Precision Edge is a cool little piece from Chef’s Choice. It weighs 4.42 pounds and has a three-stage sharpening system that puts a long-lasting edge on your knives.

The sharpening disks themselves sit at a fourteen-degree angle to ensure that the edges on all your knives are at the correct places – be aware that the 14-degree angle is for this model specifically. The angle of the disks will vary from one model to another.

As far as the aesthetics go, this is probably my favorite one! It just has that ‘cool’ factor that catches people’s attention without being obnoxious about it.

The Chef’s Choice Precision Edge can be used to sharpen both plain-edge and serrated knives. You can sharpen all your knives without much effort; a few passes through the Precision Edge’s triple bevel edge and your knife will be about as sharp as it was when you initially bought it.

Product Specifications

  • 3-Stage process
  • 14-degree angle
  • Triple bevel edge
  • Dimensions: 4.25 x 10 x 4 inches
  • Weight: 4.42 pounds
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Compact, portable size
  • Aesthetically pleasing
  • Rapid Sharpening
  • Durable construction
  • Compatible with both plain-edge and serrated blades
  • Easy to use

Cons

  • Damage risk: electric sharpeners tend to take more material off the blade than needed so you may end up grinding the blade down
  • Slightly costly

7. Chef’s Choice 320 FlexHone

Established in 1985, EdgeCraft – the manufacturers of Chef’s Choice – have become market leaders in the manufacturing of sharpeners.

The 320 FlexHone is a two-stage sharpening system from Chef’s Choice. Stage 1 has a diamond abrasive sharpening wheel for the actual sharpening part of the job, stage 2 has the same – albeit smaller – diamond abrasive on its wheel for honing the edge of the knife and making it razor-sharp.

The 320 FlexHone has a guide system in place to eliminate the guesswork involved with the sharpening process, the edges produced by the FlexHone are stronger than the typical edges you’ll get and will last for much longer.

The Chef’s Choice design, combined with a reasonable price, make this a very popular sharpener.

Product Specifications

  • Dimensions: 10.6 x 6.5 x 6.6 inches
  • Weight: 4 pounds
  • Two-stage process
  • Diamond abrasive sharpening wheel
  • Guidance system
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Compact and portable
  • Rapid Sharpening
  • Little to no guesswork involved
  • Easy to use
  • Compatible with both plain-edge and serrated blades.
  • Sturdy construction

Cons

  • There’s a chance you’ll grind your blade down more than necessary

8. Presto 08810 Professional Electric Knife Sharpener

The Presto 08810 is a three-stage electric knife sharpener that will quickly put an edge on your kitchen cutlery.

The three stages are coarse, fine and very fine. It should take about 3 to 5 passes through each stage to put a strong, sharp edge on any kitchen or sporting knife.

Stage 1: begins the sharpening process on a Sapphirite coarse-grinding wheel to create the proper angle, stage 2: continues sharpening on a Sapphirite medium-grinding wheel that gives the blade a precision edge, stage 3: completes the process with an extra-fine-grit ceramic wheel that polishes the blade to an exact, razor-sharp edge.

The Presto 08810 also sharpens Santoku knives.

It is a very quiet unit, so you won’t have any noise complaints from your neighbors when you are using it.

You will be able to adjust the blade selector to adapt to what type of knives you are sharpening. You can select thick for hunting knives, medium for chef’s knives, and thin for light blades.

The Presto 08810 is compatible with both plain-edge and serrated blades but it should be noted that if you put a serrated blade through this unit too often you may damage the serrations.

Product Specifications

  • Dimensions: 18.4 x 11.2 x 2.2 inches
  • Weight: 5.07 pounds
  • Sapphirite coarse-grinding wheel
  • Sapphirite medium-grinding wheel
  • Extra-fine-grit ceramic wheel
  • Rated voltage: 120 volts 60 Hz only
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Rapid sharpening ability
  • Quiet
  • Compact size
  • Easy to use

Cons

  • Damage risk to specific types of knives
  • Does not do well with Japanese knives, overly thick kitchen knives or with outdoor knives for hunting and/or fishing

9. EdgeKeeper Electric Knife Sharpener

The EdgeKeeper is a very nice-looking sharpener that comes in black, grey, blue, and red. The EdgeKeeper uses a two-stage system with diamond abrasive sharpening wheels. Stage 1 is the actual sharpening stage where the blade is re-shaped, and an edge put on it. Stage 2 is the honing stage where you take the sharpened knife blade and make it sharper.

Blade guides position the knives for the ideal sharpening angles.

The sharpener has a built-in magnet to collect the metal shavings making cleaning up a breeze.

It’s a simple unit with a cool look to it that will work on most knives including European and Asian-style blades.

It is an easy unit to use and its compact size means that it will not take up a lot of space.

Never use abrasive cleaners or immerse the sharpener in water.

Putting high-end, super expensive knives through this one is not recommended but it has garnered quite a following and is decently priced. It does what it is meant to do: sharpen knives, just not all knives.

Product Specifications

  • Removable magnet to catch metal shavings
  • Non-slip feet
  • Rated voltage: 55 Watts, 120 Volts
  • Dimensions: 8.25 x 3.5 x 4 inches
  • Weight: 2.95 pounds
  • 55 Watts
  • ETL approved
  • Diamond-coated sharpening wheels
  • Durable easy-clean housing
Not 100% convinced, may not be suitable with specific types of blade, I recommend you do a bit more research

Pros

  • Cool aesthetic design
  • Sharpens quickly
  • Compact size makes for easy storage
  • Magnetic cleaning system holds all metal shavings until the unit is cleaned

Cons

  • In addition to over-grinding, blades may be unevenly sharpened or scratched
  • Not compatible with ceramic or serrated knives
  • Motor may not be able to handle prolonged sharpening sessions
  • For fine blades only
  • Do NOT attempt to sharpen sporting knives, serrated knives, ceramic knives, electric knives, scissors, or any blade that does not properly fit in the sharpening slot

10. Work Sharp Knife & Tool Sharpener Ken Onion Edition

As with all lists that cross my desk, I must add my unique number 10 product.

The Work Sharp was designed by a man by the name of Ken Onion and is one of the more well-known electric sharpeners on the market.

It works in a similar way to the others, the key difference being that the Work Sharp uses abrasive belts to sharpen your blades.

The triangular belt has adjustable angle guides to ensure that your knives get the edge where it is meant to be.

You can also adjust the speed of the belts which means you don’t risk overheating the machine.

As far as performance goes, the Work Sharp has a reputation among knife-nuts the world over for being a well-built and versatile machine; and the reputation is well-earned considering that you can use it to sharpen all knives: kitchen, hunting, plain-edge, serrated, gut hooks and you can even sharpen larger  blades (i.e. axe and lawnmower blades) without difficulty.

In terms of using the Work Sharp, it is not all that complicated. You simply set your angle guides (50 degrees for hunting and outdoor – 25 degrees on each side – and 30 for kitchen knives). Once the guides are set, start the machine and lay the flat of the blade against the belt. Keeping the edge perpendicular to the belt, pull it through until the point reaches the center of the belt and then stop the belt. You do this and cycle through the belts until your blade is honed to your liking.

Product Specifications

  • Two-stage sharpener
  • Fine edge blade
  • Slot angles
  • Removable magnet
  • Nonslip feet
  • Dimensions: 8.25 x 3.5 x 4 inches
  • Rated voltage: 55 Watts/120 Volts
  • ETL approved
Recommended for those looking for a reliable electric knife sharpener

Pros

  • Rapid sharpening
  • Incredibly versatile: can be used to sharpen all knives both serrated and plain edge
  • Can be used to sharpen gut hooks as well as axes and lawnmowers
  • Easy to use
  • Angle guides ensure that the angles of the edge are correct
  • Adjustable speed and angle guides

Cons

  • Depending on the model, the price can be a little steep
  • The angle guides are not exactly precise and tend to flex when too much pressure is applied to the belt; this is because they work by pushing the flat of the blade against the belt and holding it there

There is one very important thing that you need to keep in mind when using the Work Sharp: if you keep the belt moving when the point goes past the center of the belt you could end up rolling the edge of your knife.

Best Electric Knife Sharpeners

FAQs

What’s the difference between a steel blade and a ceramic blade?

Apart from the different blade materials, ceramic blades are easy to clean, stay sharper for longer, they do not rust (as there is no metal in them), they do not transfer odors and are very lightweight. On the other hand, ceramic blades are more brittle than steel blades as they are typically much harder. They are not very versatile knives for the kitchen; each one is tailor-made for a specific purpose and the price tag on ceramic blades may pose an issue in and of itself.

Steel blades are the opposite; they are typically more affordable, more versatile and for the most part is lightweight. As far as rust goes, if you take care of your knives then your knives will take care of you.

Plain vs. serrated edges: what’s the difference?

A plain edge is also called a fine edge or a straight edge and is essentially where the edge is a straight line. A serrated blade is, for lack of a better description, a blade with teeth.

What are the advantages and disadvantages of using an electric sharpener over a pull-through sharpener or stone?

I’ll start off with the positives: they can put a wicked edge on your knives in a very short amount of time and, unlike a stone, an electric sharpener is much easier to use… if you follow the instructions. With stones you must learn through trial and error most of the time and will sometimes end up with an unevenly sharpened knife. Electric sharpeners typically have angle guides to help get an even edge all along the blade.

On the other hand, electric sharpeners can get to be very expensive tools – especially if you’re only going to use it once every few months. They can also be big, bulky machines that take up an awful lot of storage space and you won’t be able to carry them around without some difficulty. They can be noisy. Most of them are limited to sharpening specific types of knives (i.e. plain edge) which means that for serrated knives you’d have to find a different sharpening system.

Speaking of the knives, there are serious damage risks that come with working on an electric sharpener. I know I’ve harped on this a lot, but it is a big problem; the damage can be as minor as a scratch or as major as over-grinding the blade. Depending on the seriousness of the damage, you may have to replace that knife or set of knives. Considering the price of knives nowadays, I shudder to think what the price would be to replace high-end specialized knives.

What is ‘overgrinding?’

Let’s look at the actual sharpening process for a minute. When you put a dull knife on a stone, you are essentially grinding the old edge off and putting a new one on. This is what is supposed to happen; if it does not happen your knife stays dull. The problem is that if you take too much material off the blade then there won’t be enough material left to make an edge out of.

Is there a way to fix an over-ground knife?

It depends on the severity of the over-grinding but generally yes, it is possible to ‘fix’ a knife that was over-ground. You must get it re-profiled; a knife company will have to make an entirely new blade out of the existing material.

What is the best electric sharpener on the market?

Generally-speaking, the Work Sharp is considered the best bang for your buck when it comes to electric sharpeners. Keep in mind, however, that the answer will vary from person to person with everyone having a different idea of what the ‘best’ one is.

All these electric knife sharpeners have both good and bad characteristics.

I’d rather not spend money on a tool that will fall apart after a single use or after a few months of sporadic use (the kind that breaks the day after a few months of sporadic use.

I would go with the Work Sharp. It’s pricey, don’t get me wrong, but I’d rather have a tool that I know works and the brand’s reputation as well as just how many people use the Work Sharp is evidence enough for me that I can expect quality. Its beautiful retro look is also a bonus.

The most important thing you need to remember is to check exactly what a sharpener can do.

Can it sharpen the type of blade you want to be sharpened? You don’t want to damage your blades.

I hope this article will help you find the right sharpener to suit your needs.

Leave a Comment