I took a class for a poor teacher and dug a big pit for myself. I spent a night in the evening. I poured a half a catty and simmered the skin. I was tired of the baby. I will buy it next time.
The teacher didn't have salt in the skin. I think that adding salt is more powerful. Put the material into the chef's machine and the noodle. Then press the noodle press. Finally, use the teacher's teaching pin to make a thin slice. Seal the frozen or frozen.