1. Wash pig bones with clean water, then remove them and drain them for later use.
2. Pour the right amount of water into the pot, boil the ginger, put the pig bones into the water, and then remove them for use.
3. Pour enough water into another pot, then add the blanched pork bones, and then add a proper amount of ginger slices.
4. Remove the residual blood foam after the fire boils, and then continue to cook for 10 minutes.
5, 10 minutes later, turn to low heat and simmer for 3 hours, and the broth will be ready in 3 hours.