Sweet mouth, start 1 hour before the meal
First, burn the water used for simmering, and simply clean the ribs and corn shoots, ginger slices.
After the water is opened, first smash the corn shoots for about 1 minute (to oxalic acid), remove them, and cut the two pieces for later use. Then simmer the ribs for about 1 minute (to the blood and dirty things), remove the cold water and drain and set aside.
Carrots are washed and rooted, without peeling, and the hob is cut into pieces for use.
Put all of the above into the pressure cooker, add water, and start the soup. You can take out the pot in about half an hour.