No less than 15 folds.

Dog's Buns, made of flour and pork, were created in 1858 (during the reign of Xianfeng in the Qing Dynasty), and are the first of the "Three Greatest Tianjin Buns". The buns are made of flour and pork, which are firstly created in 1858 (during the Xianfeng period of the Qing Dynasty), and are the first of the "Three Greatest Buns of Tianjin".

Origin of Dog Nai Baozi:

Dog Nai Baozi is a famous snack in Tianjin, which was founded in 1858 AD, and is one of the old Chinese brands. There are two kinds of stories about the origin of dog buns:

One is that in ancient times, there was a peasant family in the suburbs of Tianjin, who got a son at the age of forty, and took the name of "dog" for the sake of peace and security. The dog grew up, first in Tianjin, a steamed food store as a small boy, and later set up their own baozi stall. Due to the business is too good, the dog can not take care of talking, people say: "the dog sells buns ignore people", people will call him the dog indifferent buns.

Second, there is a fourteen-year-old child named Dog Li, learning to make buns in Tianjin. The buns he made were delicious and sold quickly. People got used to calling him by his nickname, and over time, they called the buns he made "dog indifferent" buns.