The food safety issue is worrying, and it’s self-sufficient.
Use a meat grinder to stir the meat into minced meat, then add seasoning
Egg white separation
Put it in the chef's machine and stir it for about 20 minutes. Stir it until it is very elastic. Then put it in the refrigerator for about 1 hour.
The casing is rinsed three or four times with water and then soaked for about 20 minutes. Rinse under the tap before filling
Tighten about 15cm with cotton thread
Finish, hang in the air for two or three hours
Cold water in a pot for about 20 minutes