Twenty-five minutes. Simmer the dried shredded beans for about 25 minutes until they are fully cooked. There is no need to soak dried shredded beans in water before stewing. Rinse it with clean water and put it directly into the pot. Because the beans stewed in this way will absorb the soup and become more flavorful, start with a high fire and then add the beans. After boiling the pot again, turn to medium to low heat and simmer for twenty minutes. In the last five minutes, reduce the soup to high and take it out of the pot.