After cooling, put it into the grinding cup of a blender and start beating.
The process is very simple, just play over and over again, just be sure to play for a while and stop for a while, otherwise the machine will burn out, but the loss will outweigh the gain.
Generally, oil will be produced after hitting for about three times, and sesame seeds will become pieces. Actually, it's about the same. You can continue to hit it to the level you want.
When you play, you can pour some sesame oil as a primer, which makes it easier to play.