2, the process is backward, cut corners. Excellent bamboo cutting boards should be pressed with high temperature in the surface layer to prevent the joints from contacting the food. However, a large number of poor quality cutting boards adopt the method of splicing. When the water content fluctuates greatly, it is very easy to crack and deform. Plastic cutting boards should be made of high temperature and non-toxic components, while a large number of manufacturers use unqualified non-food grade materials and even recycled materials. If the wooden cutting board is made of whole piece of wood, the strength can be increased to improve the crack resistance, but a large number of spliced finger joint plates exist. The surface of the wooden chopping board should be coated with beeswax oil or edible oil, and many manufacturers replace it with wood paint.