The method of pork floss is as follows: wash the pork tenderloin and cut it into large pieces (remove the tendons); Add water to the pot, add onion, ginger and star anise to boil, add tenderloin to boil, skim off the floating foam, add a little white wine or cooking wine and continue to boil; Cook until chopsticks can be easily inserted, fish up and spread out to cool; Roll or knock with a rolling pin for many times to make the meat pieces flat.