What is The Best Electric Knife Sharpener of 2017? (My Picks with Reviews)

Unless you are familiar with using sharpening stones and the technique that goes into correctly angling your blade while sharpening it, electric knife sharpeners are a much easier and pretty affordable alternative.

Not everybody is a blacksmith, and understandably so.

As a result, many people want to find the best electric knife sharpener to take the hard parts out of knife sharpening so that they can sharpen their knives like a pro.

The best part is that it takes very little training to use one.

This is what makes purchasing the best sharpener is now perhaps the definitive way to keep kitchen knives ready for the most efficient use possible.

 Comparison Chart




Chef's Choice 1520

3-stages of sharpening

12” x 6.2” x 6.4”

Wusthof PEtec

3 stage sharpening.

10” x 6” x 6”

Smith's 50281

one stage sharpening

10.4” x 5.8” x 3.8”

Chef's Choice xv Trizor

3-stages of sharpening

12” x 6.2” x 6.4”

Presto Ever Sharp

Two-stage sharpener

8.25” x 5.75” x 4”

Electric Knife Sharpener  Reviews

1. Chef's Choice 1520 

If you want an electric knife sharpener which has stages which, with a short learning curve, allow you to quickly pinpoint which stage(s) to use for optimum knife sharpening, this is the best knife sharpener to suit your needs.

Chef's Choice 1520 Angle Select

Definitely The Best in the Market

Chef's Choice 1520 review


Stages 3-stages of sharpening

Can sharpen serrated Knives: Can sharpen many types of knives, including serrated knives.

Dimensions: 12” x 6.2” x 6.4”

Abrasive material: Diamond abrasives

The hard part is learning how to measure the dullness of your knife.

Once you are able to do this, you will easily be able to measure which stage(s) to use.

All-in-all, you can have a knife go from extremely dull to extremely sharp with this machine in minutes.

Since this machine contains diamond abrasive, most popular types of knives will be able to be efficiently sharpened by this machine.

Diamonds are the strongest element in the periodic table, making them capable of sharpening most types of knives.

Included on this list are serrated knives, which can be especially difficult to sharpen.

When you are finished with this device, it can be easily placed away in a cabinet for future use.

The Sweet
  • 3 stage sharpening technology allows for both sharpening and maintaining sharpness.
  • 2 diamond coated disks
  • Polishing disk helps maintain sharpness
  • Fast and easy sharpening.
  • Relatively small design can easily store away when not in use.
  • 15 and 20-degree sharpening.
The bitter
  • Can be hard to learn which stage(s) to use at first.

2. Wusthof PEtec 

Another 3-stage option with diamond abrasives to consider is this product from Wusthof.

Like other 3-stage options, the first stage is for extreme sharpening using the diamond abrasives.

Wusthof PEtec

Easy to use

The second stage is for knives that are both relatively sharp and dull.

Finally, the third stage is reserved for polishing, and finishing the knife while maintaining its sharpness.

With three stages, however, it can be sometimes difficult to pinpoint which level of sharpening that you need.

Wusthof PEtec Electric Knife Sharpener review


Stages 3 stage sharpening.

Can sharpen serrated Knives: Can sharpen many types of knives, including serrated knives.

Dimensions: 10” x 6” x 6”

Abrasive material: Diamond abrasives

However, once you catch on the machine’s relatively easy functionality and features, you will be able to easily determine which stage(s) to use and sharpen your knives within minutes.

At the end of the day, a fast and easy option like this will always beat using a sharpening stone for a while or getting your knives professionally sharpened and returned after a period of time.

Since this is a lightweight and pretty easy-to-use sharpener, many people will consider it to be the best electric sharpener in the market.

The Sweet
  • 3 stage sharpening technology allows for both sharpening and maintaining sharpness.
  • Each sharpening stage is very quick and easy to use.
  • Can sharpen most types of knives.
  • Professional-level sharpening from the comfort of your home.
The bitter
  • Can be hard to learn which stage(s) to use at first.
  • Requires a short learning curve to use.

3. Smith's 50281 

If you want to purchase a smaller sharpener which only has one stage of sharpening, you might consider this to be the best option available for you since it has one stage of sharpening which comes equipped with a diamond-based side and ceramic based side.

Smith's Adjustable Edge Pro

1 Sharpening Stages

Smith's 50281 review


Stages one stage of sharpening any level necessary

Can sharpen serrated Knives: Can sharpen many types of knives, including serrated knives.

Dimensions: 10.4” x 5.8” x 3.8”

Abrasive material: Diamond and ceramic abrasive material.

However, since one of these honing slots is made with ceramic material, it is not recommended for ceramic knives. You will just break the knife sharpener.

Anybody with steel or stainless-steel knives will be able to quickly and efficiently sharpen their knives using this device, as long as they are careful to use it correctly.

If you reference the included owner’s manual and chart that is placed on to the gauge before using it, you should be able to quickly figure out how to use this electric knife sharpener with your personal knives.

This device is noticeably smaller than other electric knife sharpeners, making it one of the best  options for people with small kitchens.

The Sweet
  • Sharpens both sides of the blade easily with one stage.
  • Guage for adjusting the sharpening angle from 10 to 30 degrees.
  • Rubber feet keep the sharpener in place during use.
  • Easy to use when you know which gauge to set the sharpener at.
The bitter
  • Not recommended for ceramic knives.

4. Chef's Choice xv Trizor 

If you liked the other option from Chef’s choice, but are willing to only have the capability for 15-degree sharpening, you might enjoy having this option instead.

Chef's Choice VI Trizor Edge

Perfect for every kind of Knife

Chef's Choice xv review


Stages 3-stages of sharpening

Can sharpen serrated Knives: Can sharpen many types of knives, including serrated knives.

Dimensions: 12” x 6.2” x 6.4”

Abrasive material: Diamond abrasives

Since it has a nice 3-stage sharpening mechanism, and the ability to sharpen many different types of knives, including serrated knives, using the device’s two diamond coated honing slots, you can quickly sharpen your knives up to the optimum quality and then use the device’s polisher for maintaining the sharpness for long periods of time.

Although this device is great for ensuring that each part of the blade is sharpened, and each tooth of serrated blades are sharpened, it only comes with 15-degree sharpening, which will be the main drawback to many people.

However, if you have blades which solely require a sharpener with 15 degrees of sharpening, this won’t be a problem which hinders your ability to adequately sharpen your knives anyway.

The Sweet
  • Diamond abrasives can sharpen most types of knives.2 diamond coated disks
  • Polishing disk helps maintain sharpness
  • Fast and easy sharpening.
  • Relatively small design can easily store away when not in use.
The bitter
  • Like the other Chef’s Choice model can require a learning curve to use properly
  • Only 15-degree sharpening.

5. Presto Ever Sharp 

If you only use knives are lower than a 9 on Mohs scale of hardness, then this might be the best for your personal needs.

Presto Eversharp

The Best Electric knife Sharpener on a budget


Stages Two-stage sharpener – one stage for sharpening and other for precision honing.

Can sharpen serrated Knives: Can sharpen many types of knives, but not serrated knives.

Dimensions: 8.25” x 5.75” x 4”

Abrasive material:  Sapphire sharpening abrasive.

This goes for any sort of steel, carbon, or ceramic knife, which are all typically below 9 on this scale.

However, you will not want to use traditional flat edge blades, and not any sort of serrated blade with this device.

If this is the case with your personal circumstance, this is a great product worth considering.

Many people will only have a few knives that they need to be sharpened, and simply don’t need a fancy device which is large and equipped with many different stages.

Additionally, diamond is a tad more expensive than sapphire, which is the main reason why many people love this electric knife sharpener.

Since it has nice receptacles which you can use for immediately and properly disposing of your metal filings, maintaining this device and keeping it clean will be relatively straightforward.

The Sweet
  • Can sharpen most steel, stainless-steel and ceramic knives.
  • One honing stage for heavy-duty sharpening, one for finishing and perfecting.
  • Included receptacles catch metal filing waste for proper disposal.
  • Long-lasting if used properly and sparingly.
The bitter
  • Sapphire abrasive material isn’t quite as hard as diamond.
  • Doesn’t sharpen serrated knives.
  • Cannot adjust the sharpening angle.

Electric Knife Sharpener: A Buying Guide

Buying Guide

After looking through all of the best electric knife sharpener options that were presented above, you may still have some questions before you purchase the one that will perfectly suit your needs.

Since any of the knife sharpeners presented above are capable of suiting most, but not all, of the needs of every person interested in an electric knife sharpener, it is important to know exactly what you are purchasing before you do so.

If you do not carefully research what features and types of knives the electric knife sharpener you are considering supports, you might end up ruining your knives, electric knife sharpener, or both.

To help anybody who needs a tad more information before they purchase one of the best, let’s go ahead and break down the main details so that you can make an informed decision.

Types of Knife Sharpeners ?

People have been using knife sharpeners as long as knives have been around.

From ancient blacksmiths crafting the perfect blade for war to modern times where professionals will service your knives for the most efficient cutting possible, this is a service that isn’t going anywhere.

However, with modern technology comes the ability to do things more efficiently and cost-effectively.

This is where electric knife sharpers come in.However, it is important to note that if you want to sharpen your knife, you don’t have to use an electric knife sharpener.

In fact, there are many other options that you might instead consider.

Sharpening Stones:

Sharpening stones are the most traditionally used means to sharpen your knife for everyday use.

They are also some of the most affordable options available.

They work very simply: by sliding your blade along the surface of another (harder) material so that the dull edges will wear away in place and thin the blade to make the edge much sharper.

If you know what you are doing, and have a little bit more time on your hands, this is the most affordable way to sharpen your knives.

sharpening stone

However, keep in mind that many people who try to use a sharpening stone might quickly give up since they require a lot more skill than an electric knife sharpener does.

Additionally, these will prove extremely difficult to try and use with serrated blades.

Handheld Sharpeners:

These are pretty similar to sharpening stones but are a lot more portable.

These products can typically fit in the palm of your hand, and are capable of being stowed away in your pocket while they are not being used.

Although these could be used effectively with hunting and fishing knives while you are on the go, long chef’s knives will press the limits of their capabilities.

If you are considering purchasing a knife sharpener, and you mainly want to sharpen out smaller knives or need the ability to sharpen your knives on the go, this is a great option to consider.

However, if you want a more permanent option which can be used for fancier knives with jagged edges, you will want to instead purchase an electric knife sharpener, which is made for this function.

Honing Steel:

Honing steels are typically not used for heavy-duty sharpening, but instead maintaining a sharp edge.

These are typically in a round shape with a small handle, which makes them considerably portable.

However, as stated, you shouldn’t expect to take a dull knife and make it work like new using honing steel.

These are mainly for refining your blade and keeping it sharp when it is already working pretty well.

Knife hones

These are a good option to consider if you purchase an electric steel sharpener and want to keep a consistently sharp edge on your knife.

They are typically made to hone most steel and ceramic blades.

Many people will use an electric knife sharpener when they need to really sharpen the blade, and a honing steel to keep it sharp.

However, if you purchase one of the three-stage electric knife sharpeners, like the Chef's Choice 1520, you will discover that it already does this function automatically in the third stage.

Electric Knife Sharpeners:

Electric knife sharpeners are the product of modern innovation.

These allow a novice user who doesn’t have much ability with knives to quickly be able to sharpen their knives like a pro.

Since they come with automatic honing mechanisms, a user will simply have to slide their knife through the included slots 2 – 4 times and then be left with a knife that is brand new.

Although some electric knife sharpeners only have one or two stages of honing mechanisms, there are also those that come with a third honing mechanism for maintaining your knife and eliminating the need for continually using all three stages.

electric sharpener

Three stage electric knife sharpeners will also halt many people from getting products like honing steel, which is used to maintain a blade which is already decently sharp.

However, stainless steel is not naturally non-stick, and even though it will not wear thin like a tin lining, you may find yourself investing a little extra work cleaning anything burned into the stainless steel.

Best Angle to Sharpen Knives:

Best angle to sharpen Knives

Knives come in all sorts of shapes and sizes, especially on the blade, this is why many people have difficulty determining which angle is best to use for sharpening their knives.

Unless you are not knowledgeable with how angles work, you understand that the lower the angle, the thinner (and sharper) the blade is.

However, lower angles come at the cost of having a weaker blade, which is why kitchen knives aren’t placed at 1 degree, for example.

Best Angle for Kitchen Knives:

Typically, kitchen knives will come anywhere between 15 – 20 degrees.

This allows plenty of room for the blade to be both sharp and durable.

Many western knives are placed at 20 degrees, but 15 degrees is a pretty round number if you want your kitchen knife to have a bit of a kick to it. In any case, keep in mind that the lower you go on the degree scale, the weaker your knife will be.

As a result, try to purchase a knife sharpener that is anywhere between this range.

Best Angle for Hunting or Fishing Knives:

Anybody who wants to take their blade out on the road for hunting or fishing needs a blade that is considerably durable.

As a result, you will want to hone these knives anywhere between 20 – 30 degrees for the best possible results.

Since hunting and fishing knives are used for slicing and dicing, they don’t need to have an extremely low angle.

How to Sharpen with a Knife Sharpener?

How to sharpen with a Knife Sharpener

Learning how to sharpen your knife depends on which mechanism you want to use.

If you use a sharpening stone it is a little more difficult than using an electric sharpener.

However, for your reference, let’s go ahead and break down how to sharpen a knife using both methods.

Using a Sharpening Stone:

Sharpening stones are considerably difficult to use if you don’t know what you are doing.

This is why many people will pay people to sharpen their stones for them.

However, if you want to learn how to use a sharpening stone, let’s quickly break down the basic steps. If you are looking for a step by step is just here.

  1. Choose a sharpening stone that has the correct grit. This will depend on your blade dullness.
  2. Read the manual that came with your stone and follow the instructions (This can either mean you add water and/or use it dry.)
  3. Position your knife at a 20-degree angle (or 15-degree angle)
  4. Slowly slide your blade down the stone, making sure to evenly touch each part of the blade.
  5. Check the sharpness by testing or (carefully) examining the blade.
  6. Repeat steps 3 – 5 several times until you are satisfied.

Using an Electric Knife Sharpener:

Electric knife sharpeners are a relatively straightforward thing to use.

Most of the best electric knife sharpeners will have a range capability that is between 15 – 20 unless you want a knife sharpener that is used for other purposes like hunting and fishing.

When you find the knife sharpener that suits your needs, sharpening it is a pretty simple process.

  1. Reference the owner manual (if applicable) that came with your electric knife sharpener.
  2. Adjust the settings to either 15 or 20 degrees, depending on your knife type and preference
  3. Slowly slide the blade into and through the slot, making sure that both sides of the blade touch the honing mechanism.
  4. Repeat step three 2 – 3 times.
  5. If there is a second stage, repeat steps three and four on the second stage
  6. If there is a third stage, repeat steps three and four on the third stage.

As we can see, using an electric knife sharpener is much easier to use when you know the basics about knife degree angles, and how to sharpen knives in general.

This is why many people are trying to find the best .

It makes things a lot easier than fidgeting with a sharpening stone, and all the variables that come with trying to use one.

Do you want to read more.

Final veredict:

Due to included angle measurements that suit kitchen knives, the three-stage process which sharpens, hones, and maintains your knife properly over time, and the relatively easy learning curve required for proper use, the Chef's Choice 1520 is hands-down the best electric knife sharpener available.

It is typically priced at a very reasonable rate, making it affordable for people of most budgets.

When you consider how difficult it is to sharpen a knife using old-fashioned methods, you start to appreciate the skill that blacksmiths have attained over the millennia. However, thanks to the invent of electricity and modern innovation, the skillset that these people have had over a long period of time is starting to no longer be needed.

Thanks to electric knife sharpeners, the common person can easily sharpen a knife the same as, or better, than a professional.

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