We may receive a commission on purchases made from links. Sharpening knives used to be a task you wouldn't want to do at home. It was often easy enough to take your knives to a sharpener, who could ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...

Choosing the best knife sharpener can be difficult, given the myriad of choices. However, being able to properly maintain the edge on your cutting tools—whether it’s a pocket knife or a fillet ...

Your kitchen knives have been bearing the brunt of your pandemic culinary pursuits. And if you haven’t given them some TLC over the past few months—or ever—you might notice that it takes some effort ...

Learn where your knife falls on the HRC scale—it matters more than you think.

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...