This is actually a delicacy, and the preparation process is as follows: First, select beef ( using whatever is available, preferably good quality ), add salt for marination, then air dry ( for about 3 months ), the ingredients are ready. Place the beef into a container with an appropriate amount of clean water (, submerge the beef ), turn on low heat, and keep boiling. Once the water in the pot has evaporated, continue boiling for half an hour until the beef is charred, then add more water and boil for another half hour before removing from heat.