Lin, a street person in Minhou, is the chef of Liu Buxi, the ambassador of Fuzhou Salt Transportation, and the founder of Fuzhou "Dingriyou" meat floss. Born in Xianfeng, Qing Dynasty for three years (1853), his parents died in childhood and his family was poor. As a teenager, he went to Fuzhou alone to make a living. Lin first studied art in a restaurant in Guanglufang, and then worked as a chef in Liubuxi in Guanglufang.

Liu Buxi was an imperial examination officer in Guangxu period of Qing Dynasty. Lin thanked the Liu family for their esteem and was determined to work hard to make the Liu family eat delicious and satisfied.

According to legend, dental floss was invented by him for emergency. Once I invited a guest, Lin cooked. When Dingding was cooking a piece of pork, he accidentally overcooked it. The best pork was too badly cooked to serve. Lin was extremely anxious, thinking about what to do. At this time, the host was rushing to serve food. Lin had no choice, so he tried to make mistakes. After removing oil, tendons and film from the rotten pork paste, he put it in a pot, added seasonings such as soy sauce and baked it into strips of minced meat. After Lin cooked this dish, he tasted it himself and thought it was ok, so he took it out, fearing that his master would blame him. I didn't expect everyone to appreciate this novel floss after tasting it. I think it is not only delicious, but also looks unique. I had never seen this dish before, so I asked Lin what its name was. Seeing that the pork on the plate was like velvet, Lin casually replied, "This is the meat floss I tried to make."

From then on, Lin continued to try to make minced meat, constantly improving ingredients and processing methods, and soon made "crispy minced meat", which was popular in three lanes and seven lanes of Fuzhou. "floss" is dental floss. For more than 100 years, dried pork floss has become another unique food in Fuzhou, which is suitable for all ages. It was once sent to the palace as a tribute from Fujian. In the 16th year of Guangxu (1890), Lin officially opened a shop in Guanglufang, specializing in meat floss, and Liu Buxi inscribed a plaque for the shop "There will be a pile of meat floss here on a certain day". The word "Ding Riyou" takes the name of Lin and implies that Ding Riyou has dental floss. Since then, Fuzhou Rousong has its first famous brand-"Ding Riyou".

Lin started from scratch, producing dental floss, and his business is booming. At the age of forty, he married Qiu and had four sons: Jichang, Jinbao, Qisheng and Qirong. 19 19 Lin died at the age of 66, and his wife Qiu took over the family business. The eldest son, Qi Chang, opened a "Changfang Dingri Rousong Shop" at the corner of Zaoti Lane in Guanglufang, with "Guding" as the registered trademark, the second son, Jin Bao, opened a "Baoriyou Rousong Shop" near Nanmendou, the third son, Qi Sheng, opened a "Dingriyou Rousong Shop" at the corner of Guanglufang, and the fourth son, Qi Rong, opened a "Dingriyou Rousong Shop" at the end of Guanglufang. Among them, the long room is beneficial to remember that the meat floss shop has the best business.

A piece of pork floss once participated in Panama International Expo 19 19, and won the gold medal, which is well-known at home and abroad. The famous navy star Sa Zhenbing wrote the title: "Crispy meat floss is the first in Fujian, and Baoding time-honored brand is world-famous". In recent years, Lin's first granddaughter founded a "meat powder factory" and personally supervised the production in the workshop, creating a "brand" meat floss. "Ding Riyou" and "Ding Ding Brand" meat floss are not only deeply loved by Fuzhou people, but also sell well in China, Hongkong, Taiwan Province Province, Southeast Asia and other places, especially by overseas Chinese in Fuzhou, affecting overseas villagers.