The origin of the duck blood fans is said to be a very poor man who kills ducks with a small bowl of blood that must not be thrown away and the fans fall in and dirty. He had to boil his fans with duck's blood, but he did not know that he had burned the preferred bowl of duck's blood, and only smelled the fragrance of the soup, leading many people to wonder how the delicious soup was cooked. A rich man has heard of this, and has been named a professional cook, who cooks for the rich and his aunts, and then he gets a taste for it. The market situation for the duck's blood soup is so overwhelming that its fans include all the men, women and children. In the cities of nanjing, jinjiang, shanghai, chai fat, you can meet duck blood fans in every four seasons, whether you cross the street or in an alley. Some of these duck blood fans have a front, some of them have a small share, while the same is a good business and a good smell. In these duck-blooded fans, mae-ducks are known as a mid-t...