It is no surprise that most jobs that were done manually are now conquered by technological advancements. Electric knife sharpeners are one of the brightest examples of this. Today, you can get the physical job of sharpening knives done through the invention of the knife sharpening system. These products are so abundant in the market that you would find it difficult to make a choice. So, we have come up with a list of 7 best electric knife sharpeners for you to make a wise selection. These products differ in size, motor power, ability to grind different types of knives, durability and many other factors. You can learn about them by reading through the product descriptions and their reviews. In the end, don’t forget to read our buyer’s guide to get extra information on how to use these sharpeners effectively.
Work Sharp Knife & Tool Sharpener Ken Onion Edition
This Work Sharp’s kitchen knife sharpener is not just for knives, but also for other tools. Its adjustable sharpening guide offers precise sharpening levels from 15-30 degrees. The speed engine is variable in terms of handling multiple types of jobs. Improved cooling, slow honing and fast grinding are among other amazing features of this product. Set up and calibration does not take time. And lastly, the premium flexible abrasive belts ensure a strong and sharp convex edge.
Work Sharp Reviews
The ratings for this product are absolutely amazing, with 81% of people giving 5 stars to the overall rating. I believe the number one reason that so many people liked this sharpener is that it is easy to use, and everyone can work with it without much knowledge. Another important benefit mentioned by reviewers is safety so that even younger people can use the gadget. One comment writer claimed that he had compared too many knife sharpeners in the market, and this one was by far the best one he had seen. He was especially delighted by the speed of sharpening.
The main issues associated with this product is its durability. People have experienced breakdowns after short periods of usage. One person reported that his Work Sharp sharpener’s drive pulley refused to work after just 12 knives, which is too little. Another reviewer claims that his sharpener stopped working after just 1 week. Another drawback reported is that the guide is not sufficiently detailed to provide the users with enough information on how to operate with the tool.
Work Sharp Pros
- Easy to use.
- Very fast sharpening.
Work Sharp Cons
- Not durable – prone to breakdown after short usage.
- Poor guide to provide information on proper usage.
Presto 08800 Ever Sharp Electric Knife Sharpener
Manufactured in China, this product offers professional results. Its two-stage knife sharpening system ensures a fast and simple sharpening process. The edges end up razor-sharp after going through the sharpening wheels. At stage 1, a precise angle is adjusted for accurate grinding or sharpening. At stage 2, the electric system quickly and easily does its work to deliver good results. The appliance is convenient to use in home kitchens. The design is made to make it look well near other kitchen items.
Presto 08800 Reviews
Based on the positive comments, it looks like the manufacturer hasn’t exaggerated the main features. People assure that the results with this electric knife sharpener are absolutely great as the end products are razor-sharp knives. Another great benefit mentioned by most reviewers is the durability of this Presto automatic knife sharpener. One user reported 5 years of usage without any problems and loss of quality. People believe that the value of money is high and suggests that if you don’t want to spend a massive amount of money, then this is the one to buy.
Surprisingly enough, the negative reviews suggest completely contradictory opinions when compared to the positive ones. People disagree on the quality of this gadget and they recommend not buying this product. Some even say that instead of making their knives sharp, this unit makes their knives dull. There seems to be a lot of risks involved in ordering it. Perhaps, the problem is that some of those arrive with defaults. Other highlights from the critics are that they haven’t found it easy to use and make the setups and adjustments prior to using.
Presto 08800 Pros
- Durable product.
- Delivers great razor-sharp results.
- Good value for money.
Presto 08800 Cons
- A lot of reports of poor quality.
- Not easy to use and make the initial adjustments.
Chef’s Choice 15 Trizor XV Edge Select Professional Electric Knife Sharpener
The Chef’s Choice electric blade sharpener is made perfectly for reshaping the edges of household knives. The noise range is between 65 to 75 dBs. A simple turn on/off switch and automatic adjustment ensures ease of use for this product. The sharpening process consists of 3 stages. The first two stages feature 100 % diamond abrasives sharpening and honing the knife’s edges, while in stage 3 a flexible abrasive system polished the serrated knives to make them last longer. A super sharp 15-degree technology results in a razor-sharp end product with its superior strength and durability. A 3-year limited warranty is given.
Chef’s Choice 15 Reviews
Another amazingly rated product on our list. 80% of people chose to give 5 stars to their selection. Most users express that their expectations were exceeded by this Chef’s Choice Professional Electric Knife Sharpener. Reviewers agree that it provides razor-sharp edges on knives as an end result. However, what’s most important is that this end result is achieved effortlessly. Speed, safety and ease of cleaning are among other features mentioned by people who loved this gadget.
Even the best products in the market are not free from criticism. Several users claim that the initial adjustment of the angle is not that simple, and they have struggled with setting this up correctly to proceed to sharpening. Other negative review writers complain about the quality of their knives after sharpening. But I believe that this may be a result of skipping to read the guide. Many users seem to miss the instructions part, so they end up not using their products correctly.
Chef’s Choice 15 Pros
- Effortless operation.
- Razor-sharp edge on knives.
- Safe, fast and easy to clean.
- Is a serrated knife sharpener.
Chef’s Choice 15 Cons
- Adjustment of the angle may be difficult.
- Some reported cases of bad quality.
Electric Diamond Knife Sharpener
This Diamond Grinding Stone is intended to work with kitchen knives made from stainless steel and ceramic. The electric diamond grinding wheel features a very high power to deliver strong results. The diamond wheel cartridge and cover are removable to make them easier to clean after use. The cartridge, furthermore, can be replaced if needed. This product is not suitable for serrated blades, non-kitchen knives, and scissors.
Shenzhen Knives Reviews
Unfortunately, the number of customers who left reviews is not high, but we will take a look at the ones that are available. However, people who actually left positive comments swear that their knives look as completely new after being sharpened by this product. It also seems that users find it durable as they haven’t noticed a significant loss of quality after long periods of use. It is easy to clean due to its main parts being able to be removed. Most customers agree that this tool works perfectly with ceramic knives. So, if that’s the material of your kitchen knives, this is probably for you.
As far as negative review writers are concerned, the motor for this product is not sufficiently strong to deliver professional results. A lot of cases are also reported when the tool has arrived defective. A guy tells that this blade sharpener completely ate his knife during the first time of using. Another huge complaint by customers is that according to the instruction manual, the cutting wheel needs to be replaced annually in order for it not to wear off. People find the need for annual maintenance and expenditure inconvenient.
Shenzhen Knives Pros
- Brings knives to new condition.
- Durable, easy to clean.
- Is a ceramic knife sharpener.
Shenzhen Knives Cons
- Prone to arriving as defective.
- Weak motor.
- Need for annual replacement of cutting wheel.
Wusthof PEtec Electric Knife Sharpener
This Wusthof electric blade sharpener in one of the best-rated products on our list. It is easy to use with its simple switch on/off button. The tool works in 3 stages. Stage 1 – pull through 3 to 4 times. Stage 2 – pull through 1 to 2 times. Stage 3 – pull through 3 to 4 times. Note that you cannot clean this electric sharpener in your dishwasher, because it is not safe to do so. The unit weighs just about 2.1 kgs and is made perfectly for sharpening kitchen knives.
Wusthof PEtec Reviews
We are a little short on the number of reviews here, so the overall rating may not be too accurate. However, the users that have liked their choice agree that the tool works quickly and is easy to use. This is probably explained by the fact that these people share that they have read through the product’s instructions before starting to use it. They describe that the instructions are well written and understandable. Most importantly, performance-wise, reviewers are content with the end result. They confidently share that their knives turn razor-sharp in just under 5 minutes.
There are only a few bad reviews for this tool. However, we have some reported cases of failure. In one case, the unit arrived with defects. So, the user couldn’t really work with it and had to reorder a new one as a replacement. Another customer claims that the manufacturer’s specifications do not match reality. As claimed by the producer, their automatic knife sharpener is intended to work with all types of blades, but the customer had tried sharpening his pocket knife with no success.
Wusthof PEtec Pros
- Turns knives razor-sharp in under 5 minutes.
- Quick and easy to use.
- Accurate instructions.
Wusthof PEtec Cons
- There is a medium risk of arriving defective.
- Doesn’t work with all types of blades (works with kitchen knives, but not pocket knives).
LINKYO Electric Knife Sharpener
This LINKYO knife grinder is intended to work quickly, safely and simply to deliver pro results at your home. An automatic blade adjusting guide holds your knife at the correct angle, while a heavy-duty non-slip suction cup feet hold the grinder firmly in position for an efficient job. The sharpening process works in 2 stages. In stage 1, the sharpening of edges takes place, while in stage 2, the blades are honed and polished. The manufacturer has also thought about the clean up that customers will go through. So, most parts are removable to allow for easier cleaning process.
This is the lowest rated product on our list based on customer reviews. However, there are some customers who were impressed by their choice. Some didn’t miss the opportunity to remind about the soft cushion at the bottom of the unit, which gives the vibration feeling and doesn’t let the tool move around while working. Most of the users also agree that the end product are sharp knives that look completely new and overcome pretty hard food cutting. Reviewers also tell that the size of the product is pretty compact, which is convenient for kitchens, and the operation is fairly user-friendly.
Although even negative review writers agree on the compactness of the unit, they think that the level of noise is quite high for such a small-sized machine. Another common complaint is around the level of power when sharpening knives. There are some reported cases when customers have been unable to sharpen big knives effectively because the product is not powerful enough to handle these kinds of knives. Finally, the instruction manual is not particularly detailed enough to provide instructions on how to get the best out of this product.
Not powerful for big knives, the manual is very basic doesn’t tell enough for best results, very noisy for a little machine.
- Soft bottom cushion to stop moving around while operating.
- The end result is sharp knives.
- Compact size and user-friendly working.
- Not powerful enough for big knives.
- Very noisy for a little machine.
- The manual is not detailed enough.
PriorityChef Electric Knife Sharpener
The manufacturer claims that this is the best electric knife sharpener available in the market, but we shall see. The handle is designed to fit the human hand perfectly. Sharpening happens in 2 stages to polish the blades to razor sharpness. The bottom of the unit features a non-slip cushion to make a vibration feel while working. It is presumed that this razor-sharpness is achieved in a matter of seconds and very easily. Simply place the dull blade on the unit’s slot and press the button. It is intended to work with all kinds of blades regardless of quality and rigidity. One very important benefit offered by the producer is that you can return this if you don’t like it with a 100% refund.
From reading the positive reviews it is obvious that this product’s performance is on a high level. People use fascinating words to describe it. Most users agree that the machine is very easy to use and that it works quickly and effectively. In fact, reviewers suggest that the price is affordable, which makes up for a good value for money. The size and the compactness have received a great deal of praise too. However, there are some surprising stories when a person didn’t throw her dull knife only thanks to this Priority Chef electric sharpener. Another great story was that the end result was so perfect that one housewife felt her arthritis so much less when cutting food using her newly sharpened knife.
On the other hand, a handful 10% of all reviewers chose to give 1 star to their selection. Almost all of the cases report failure to sharpen their knife properly or, more severely, complete damage of the knife. This just shows that it might be risky to buy this product since it may be arriving defective frequently. Another interpretation of this is that people miss out on reading the instruction manual and end up ruining their knives.
- Easy to use, quick and effective.
- Affordable – good value for money.
- Compact size.
- There are some reported cases of failure with proper sharpening and damage to knives.
Electric Knife Sharpeners Buyer’s Guide
If you are wondering how sharp your knife is, the most common method of testing this is through experimenting with your knife on a benchmark material. Here are 5 top benchmarks you can test on:
– Paper – this is rather a basic test for knives. If you can slice a paper without tearing it apart, then your knife must be reasonably sharp. You can also use this test to identify any damaged parts on the edge of a blade.
– Magazine – if you are wondering if there is any difference between this one the simple paper test, then you should know that there is. This time the thickness of the paper is much smaller, which is much more difficult to capture. So, if your knife can cut through a magazine paper effortlessly, then you know your knife is sharp.
– Shaving – try shaving some arm hair sharply and if you succeed, then you have got a sharp knife.
– Fingernail – careful with this one though! Try sticking the knife onto your fingernail. If it sticks firmly, then it is a sign of sharpness.
– Onion – the difficulty of cutting an onion is due to its slippery skin, which is hard to catch with a dull knife. So, if you can easily cut through an onion, then your knife is sharp enough.
Follow these simple steps to use your knife sharpener:
– Place the knife in the slot to connect the blade to the grinding stone.
– The professional knife sharpener, then, will automatically place your knife at the correct angle for grinding.
– Pass the knife through the sharpener twice on each side, but be careful and do this slowly.
– By now you have reshaped your knife on the coarsest stone. Now, repeat the previous process on the finer grit.
– There will be shavings left on the blade after the process. These residues can be collected by a magnet, but alternatively, you can wash and dry.
Now that you know how to sharpen knives in general, it is time to learn the specifics of the different types of knives. It is important to have the correct angle for kitchen knives because slicing food can be dangerous with dull knives.
It is generally known that sharpening between 15 and 20 degrees will result in the best performance when cutting food. Remember that if you sharpen at a lower angle, then the sharpness will be very high, but your knife will become dull sooner.
When trying to sharpen a ceramic knife, don’t waste your time trying to do it with a regular electric blade sharpener. Instead, you should do it with a diamond sharpener. You can find one of these products in our list of best electric knife sharpeners.
When it comes to hunting knives, the use of angle matters a lot. You should aim at 25 to 30 degrees for sharpening it. Do not use a regular knife sharpener for getting this job done. Instead, use a diamond or ceramic sharpeners. They work great for hunting knives but mind using a whetstone first before starting a grinding process.
The type of sharpener used to get this kind of job done is the ceramic one. Bread knives are not easy to deal with as they are serrated, and usually on one side. So, you should sharpen them on that side only to avoid any damages.