How to grind a kitchen knife?

The sharpening of kitchen knives can be divided into sandpaper sharpening and ceramic sharpening.

1. Sharpen the knife with sandpaper. You can sharpen the knife with sandpaper. First, put the sandpaper flat on the table, then ensure that the kitchen knife is tilted about 20 degrees, and then keep a certain strength to polish it back and forth. It takes about 2 minutes to grind the kitchen knife.

2, ceramic sharpening, grinding a kitchen knife needs to use ceramic sharpening, ceramic bottom up, apply toothpaste on the kitchen knife. Friction molecules in toothpaste can increase the friction between kitchen knife and ceramics, and then grind them back and forth, adding salt water during grinding and grinding for 5 minutes.

The kitchen knife should contact with corrosive objects or liquids as little as possible during use, so as not to affect the molecular structure of its surface. In addition, after the kitchen knife is used, it should be wiped clean with a dry rag and stored in a ventilated place to reduce the oxidation of the knife surface.