Whether it’s an electric sharpening system or a handheld knife sharpener, there are definitely multiple ways that you can accidentally damage your knives. If you’ve looked at the product list first, then you’ll see that some negative attributes of a few of these models are that they leave scratches and streaks on your knife. If you use a ceramic knife in most modern knife sharpeners, there is a chance of it breaking due to pressure, but that’s up to your own discretion. A knife sharpener can damage your knife, particularly if you just take the sharpener out and start using it without reading the instructions first. Most of the bottom tier customer reviews we’ve read in preparation for creating this guide simply didn’t know how to use the product, and as a result caused damage to their knives.\r