1. It takes one to two hours to boil trotters soup;

2. If the old people drink it, they can stew it longer. After all, the old people should try to eat less fat and drink more soup. If we eat it ourselves, we can stew it less for a while, so that the trotters taste very elastic and have no smell of pork. After eating, we can add a bowl of rice to soak in the soup, which is really delicious.