Operation:
1. Slice the tenderloin (not too thin). Add edible powder and put it in alkaline water 10 minute (mainly to relax the structure of beef). Wash the bleeding water and the alkaline smell in the water. Pick up the salt and stir for 5 minutes (you must put enough salt, otherwise you can't catch the water).
2. Gradually add 600 grams of water and stir for 30-40 minutes until the beef will produce jelly-like things. Pick up the beef and watch it in the light. It's light red and a little transparent.
3.2 Stir the egg whites of the eggs and put the powder (a thin layer on the surface of the beef is enough).
4. Add salad oil and stir well (the purpose is to make the beef out of the pot and spread it flat as soon as possible)