2. Stew ducks in a pressure cooker at high temperature and pressure, and the stewing time will be shortened. Otherwise, if the stewing time is too long, the duck meat will all be scattered in the soup and cannot be picked up for consumption. Various ingredients such as potato, yam, medlar, jujube, louver, corn, bamboo shoots, ginseng and angelica can be added to the duck soup and boiled together, thus enriching the taste of the duck soup.