The Ultimate Guide to Buying an Electric Knife Sharpener

Your Guide to buying the best Electric knife sharpeners


This guide is designed to provide you with the information you need to make an informed decision when purchasing an electric knife sharpener. It will cover what to look for in a good electric knife sharpener, the types of sharpeners available, and important safety considerations. We will also provide some helpful tips to ensure that your electric knife sharpener is able to provide you with years of quality service. With this guide, you’ll be well on your way to finding the perfect electric knife sharpener for your needs.

Key features

  1. Sharpening type: There are two types of electric knife sharpeners, manual and automatic. Manual sharpeners require the user to manually adjust the blade angle and pressure in order to sharpen the knife. Automatic sharpeners use a motorized stone or wheel to sharpen the blade at a pre-set angle and pressure.
  2. Material: Electric knife sharpeners are made from a range of materials, including stainless steel, plastic, and aluminum. Choose one that is durable and easy to clean.
  3. Size: Electric knife sharpeners come in various sizes. Choose one that is appropriate for the size and shape of your knives.
  4. Price: Electric knife sharpeners range in price from a few dollars to several hundred. Consider your budget and what features you need in a sharpener when shopping for one.
  5. Warranty: Choose a sharpener that has a warranty so that you can get a replacement or repair if there is a problem with the product.
  6. Ease of use: Make sure to choose a sharpener that is easy to use and understand. Ask yourself if it will be easy to use for a novice or an experienced knife sharpener.
  7. Safety features: Look for features such as non-slip feet and blade guards that will help keep you safe while sharpening your knives.

See the most popular Electric knife sharpeners on Amazon

Important considerations


  • Ease of Use: Electric knife sharpeners are easy to operate and require minimal effort from the user compared to manual sharpening tools.
  • Precision: Electric knife sharpeners provide consistent results, making them well-suited for tasks that require precision and accuracy.
  • Portability: Electric knife sharpeners are often lightweight and compact, making them easy to take with you on the go.
  • Time-Saving: Electric knife sharpeners can sharpen knives quickly, saving you time and effort.
  • Safety: Electric knife sharpeners provide a safer alternative than manual sharpening tools, as they are designed to reduce the risk of accidents.


  • High Costs – Electric knife sharpeners can be expensive, with some models costing hundreds of dollars.
  • Inconsistency – While using an electric knife sharpener is simpler than using a sharpening stone, the results can be inconsistent depending on the model.
  • Weight – Electric knife sharpeners can be large and heavy, making them difficult to transport if needed.
  • Noise – Many electric knife sharpeners can be quite loud, especially when sharpening large blades.
  • Safety – Electric knife sharpeners have moving parts that can be dangerous, such as the spinning blades.
  • Limited Sharpening Options – Electric knife sharpeners can usually only sharpen one blade type at a time, and some are not compatible with certain blade types.

Best alternatives

  1. Manual Knife Sharpeners - A manual knife sharpener consists of a handle and a sharpening surface with slots to hold the knife in place. It requires manual labor to sharpen the blade.
  2. Electric Knife Sharpeners - An electric knife sharpener is a more automated version of the manual sharpener. It features a container that holds the knife and a grinding wheel that is powered by a motor.
  3. Sharpening Stones - Sharpening stones are a traditional approach to knife sharpening. They are available in different materials such as ceramic, diamond, and oil stones.
  4. Sharpening Rods - Sharpening rods are similar to sharpening stones, but unlike stones they feature a cylindrical shape with a handle. They allow for more efficient sharpening and are easy to use.
  5. Sharpening Steel - Sharpening steel is a long rod with a smooth surface. It is designed to help maintain the blade of a knife by removing small amounts of metal from the blade as it is stroked against the steel.

Related tools, supplies, and accessories

  • Electric Knife Sharpener - A device used to sharpen the blades of knives, often including features such as an adjustable angle guide, coarse and fine sharpening wheels, and a motor for powering the sharpening process.
  • Coarse Sharpening Wheel - A coarse wheel used to sharpen the blade of a knife. It is generally made of diamond or other abrasive materials.
  • Fine Sharpening Wheel - A fine wheel used to polish the blade of a knife. It is generally made of ceramic or other abrasive materials.
  • Adjustable Angle Guide - A guide used to help ensure the blade of a knife is sharpened at the correct angle. It is generally adjustable for different angles.
  • Knife Clamp - A tool used to hold a knife securely in place while sharpening.
  • Sharpening Stone - A stone or abrasive material used to sharpen the blade of a knife.
  • Sharpening Oil - A lubricant used to help reduce friction while sharpening the blade of a knife.
  • Brush/Cleaning Cloth - A brush or cloth used to clean the blade of a knife before and after sharpening.

Common questions

  1. What types of Electric knife sharpeners are available? Electric knife sharpeners come in many different types, shapes, and sizes. Some of the most common include manual pull-through sharpeners, electric sharpeners that use a belt, slot sharpeners with adjustable settings, and diamond sharpening stones.
  2. What should I look for when buying an Electric knife sharpener? When buying an electric knife sharpener, you should consider the type of sharpener you need, the size and weight of the sharpener, the level of sharpening required, the price and the warranty. Additionally, you should make sure the sharpener is easy to use and has safety features in place.
  3. What should I consider when using an Electric knife sharpener? When using an electric knife sharpener, you should always read the instructions carefully and make sure to use the correct sharpening angle. Additionally, you should always wear protective eyewear and use caution when handling any sharp blades.
  4. What is the difference between manual and Electric knife sharpeners? Manual knife sharpeners require more time and effort to use, while electric knife sharpeners are typically more efficient and effective. Electric knife sharpeners also provide more consistent results than manual sharpeners.
  5. Are Electric knife sharpeners safe? Yes, electric knife sharpeners are generally very safe to use, as long as you follow all safety guidelines and instructions. Always make sure to wear protective eyewear and use caution when handling any sharp blades.


A funny fact about electric knife sharpeners is that they were first invented in the early 19th century - much earlier than many people would think. The French inventor, Maurice Beaudoin, was granted a patent in 1895 for a mechanical device to sharpen knives automatically. This original device was known as the 'Tournade a Lame', which translates to 'blade turner'. Today, electric knife sharpeners come in a variety of shapes and sizes, but the basic principle of having a grinding wheel to sharpen knives remains the same. Source:

Disclaimer: This buying guide was not created by humans, and it is possible that some of it's content is inaccurate or incomplete. We do not guarantee or take any liability for the accuracy of this buying guide. Additionally, the images on this page were generated by AI and may not accurately represent the product that is being discussed. We have tried to convey useful information, but it is our subjective opinion and should not be taken as complete or factual.