2, if you put salt in the beginning, corn rib soup is easy to stew very rotten, corn will also show old. It is best to put some salt to refresh the soup after it is fully simmered, when the soup is still hot and the salt flavor can easily spread to the corn and bones.
3, if you like, you can also drop a drop or two of soy sauce, so that the flavor is more fresh. You can add a small amount of cilantro, or scallions.