1, the grindstone grinding blade inside first.
To make a kitchen knife knife and 3 ° - to the grindstone
5 ° Angle (
The smaller the Angle, cutting the energy)
When the knife back and forth, the Angle of basic unchanged.
Outer edge grinding surface again.
Make a kitchen knife and 5 ° - to the grindstone
8 ° Angle, cut off the blade surface to ensure the food can be smoothly with a kitchen knife separation, but also shoulds not be too big.
2, the bottom of the bowl knife holding the handle, make knife surface to the bottom of the cup is about 20 ° Angle repeated exposure.
A circle at the bottom of the ceramic is very hard and rough, similar to the grindstone.
Blade and porcelain bottom produce very big friction, so you can sharp knife grinding.