As a food name, "brain" was not initiated by Fu Shan. According to textual research, it began at the end of14th century (the end of Yuan Dynasty and the beginning of Ming Dynasty). In the fifty-first episode of Water Margin, there were restaurants selling "brains", which shows that there were already restaurants selling "brains" at that time. At that time, it was unknown what materials were used for the "brain" and how it was made. As a kind of food, "brain" is not only a traditional famous food in Taiyuan. There is a famous food in Shanghai called "brain", which is completely different from Taiyuan's "brain" in raw materials and practices. But in any case, when it comes to "brain", that is, Babao soup, which is made of eight kinds of raw materials such as mutton, lotus seeds, yellow wine and white flour, is the best tonic in winter. So people always think of Taiyuan's famous food and Mr. Fu Shan. This is because the "brain" in Taiyuan was invented by Fu Shan, which has the most health-preserving value and the richest cultural background.