How to sharpen the knife correctly, how to sharpen the knife

1. Grind the kitchen knife first. Kitchen knife and millstone 3-5 degrees. Grind back and forth on the grindstone, and keep the angle basically unchanged when sharpening the knife back and forth.

2. Next, grind the outer edge surface. The angle between the kitchen knife and the grindstone is 5-8, and it is polished back and forth on the grindstone, and the angle remains basically unchanged when sharpening the knife back and forth.

3. There is no trace of rough grinding on the blade surface. As long as the hand touches the blade along the blade surface, the blade will not curl.