San is a famous snack in Linyi, which is deeply loved by Linyi people because of its spicy and delicious flavor, fat but not greasy, and rich nutrition, and is also praised by customers who have tasted this delicious food inside and outside the province. In Shuo Yuan Zayan, there is a record that "if you don't eat for seven days, Li Tang won't taste good". "Book of Rites Neize" said: "Nao, take the meat of cattle and sheep, three for one, and cut it into small pieces. Mix with rice 2, meat 1 and fry. " The "three" mentioned here is quite similar to today's. During the reign of Kangxi in Qing Dynasty, there were 16 kinds of products listed in Yizhou Zhi. According to legend, the brain was a breakfast drink carried by people in the west in ancient times and was introduced to the mainland, while Linyi brain was introduced from the Yuan Dynasty (now Beijing). In the Ming Dynasty, the local people called this kind of meat porridge "brain".

It has a long history and is recorded in many historical documents in China. The famous book Mo Zi Fei Ru in the Spring and Autumn Period said: "Confucius was poor in Cai Chen, and quinoa soup was not delicious", which has a history of more than 2,400 years. Among the 16 kinds of sacrifices recorded in Volume I of Yizhou Annals compiled during the reign of Kangxi in Qing Dynasty, there is "Nao food", which shows that Nao has a long history. Pay attention to four points when drinking naan: hot, spicy, fragrant and fat. A bowl of hot naan with fried dough sticks, biscuits and baked cards is a good breakfast. There are three kinds of dishes: beef dishes, mutton dishes and chicken dishes, among which mutton dishes are the most common and chicken dishes are the most precious.

There are many stories, two of which are the most popular. Story 1: The name "Three" is related to Emperor Qianlong. It is said that when Emperor Qianlong went down to the south of the Yangtze River and passed by the present Tancheng Wharf Town, he wanted to taste the local famous food. Local officials provided this unique breakfast. When Master Qianlong tasted it, he had never tasted such delicious food. He casually asked, "What is this?" The local official nodded: "What is this? What is this? " So, the son of heaven casually asked, and it became its current name-three.

Story 2: During the Eastern Jin Dynasty, a poor couple from other places fled to Linyi. Wang Xizhi, a great calligrapher at that time, saw that they were poor and often helped them. The couple were very moved and didn't expect to repay them. Once, when Wang Xizhi was ill, they thought it was time to pay off their debts, so they killed the only hen in the family to make soup, and added some common Chinese herbal medicines to the soup. I really want to cook the chicken, but my husband who watched the fire fell asleep and cooked all night without thinking about soup. The next day, looking at the cooked chicken soup, my wife was very angry, but there was nothing else at home, so I had to give the cooked chicken soup to Wang Xizhi. Besides, Wang Xizhi was ill in bed, and his condition improved slightly after taking Chinese medicine, but he had a bitter taste and no appetite. He looked at the chicken soup delivered and was embarrassed to brush others' good, so he put it in a bowl and tasted it. Unexpectedly, after drinking it, he felt refreshed and recovered more than half. On a whim, he casually wrote down the word "Mi Shen", which was later called "Mi Shen" by later generations.