1. Rinse the ribs several times with water after cutting into sections
2. Pour boiling water in the pot and pour the rinsed bones. If you can't see the blood color, pick it up and put it in another pot.
3. Pour in filtered water that has been soaked in the material
4. Pour in the sliced lotus root
5. Pour in ginger
6. Start to cook, cook until the pressure cooker valve comes up, and then cook for 15 minutes
7. After turning off the heat, wait for the gas valve to go down, add salt, and continue to cook for a few minutes
8. Add some salt and pepper
