The polishing process of plastic pepper balls adopts different polishing techniques according to plastic pepper balls made of different materials. PP balls of plastic pepper balls are difficult to polish because of their low hardness. Generally speaking, the higher the hardness, the easier it is to polish plastic balls and the better the polishing effect will be.

The machine used for polishing plastic PP pepper balls is an eddy current polishing machine. The advantage of this machine is that the speed can be adjusted, and the abrasive used for polishing will not be fully mixed because of the different density from that of PP pepper balls. In addition to polishing abrasive, special polishing solution is needed for polishing plastic PP pepper balls. If polishing solution is not used, the powder polished by abrasive and plastic pepper balls will adhere to the surface of plastic PP pepper balls during polishing, which will affect the polishing effect.