This uses a ceramic blade or wheel that you’re scraping your steel blades across. The angle is preset, likely 25 degrees. Most German style kitchen knives are 25 degrees, so that’s fine, but if you’ve got anything Japanese you’re effectively ruining their angle (which is why they’re considered sharper). The real issue…
This uses a ceramic blade or wheel that you’re scraping your steel blades across. The angle is preset, likely 25…