There are 9 species in Mianyang, Sichuan, and the founder is Zou Guangyou.

Hot and acidic noodles originated in Mianyang, Sichuan (formerly known as Fucheng), dating back to the Three Kingdoms period. When Liu Bei, Guan Yu, and Zhang Fei made their Taoyuan trilogy at the Peach Garden in Fucheng, the owner of the Peach Garden made a popular hot and acidic noodle dish. After the three people tasted it carefully, they were very surprised. They are attracted by sour, spicy, cannabis, fresh and fragrant flavors. They immediately swore that their friendship must only last as long as this hot and acidic powder, and that the road of life should be as smooth as this hot and acidic powder. The headlines of sour and spicy long noodles originate from western Sichuan. It is a traditional fast food in Sichuan Province, Chongqing and Guizhou Province. It belongs to Sichuan cuisine, Chongqing cuisine and Guizhou snacks. It is characterized by cannabis, spicy, fresh, fragrant, sour and oily but not greasy. The main powder of hot and sour flour is mixed with the ratio of sweet potato, sweet potato and pea, and then made by traditional hand. Hot and acidic noodles originate from Southwest folk. Ingredients are sourced from locally handcrafted sweet potato flour, which is highlighted to accentuate the heat and acidic flavor.

: The hot soup and sour powder are spicy, pungent, fresh, fragrant, sour and greasy but not greasy! "Hot and sour powder" is a pure natural green food. The main powder is mixed with glycine and peas in the best ratio and then made by traditional hand. "Hot Sour Powder" and convenience foods. Hot and sour powder originated from Sichuan folk. It's made from local, handcrafted sweet potato flour. It is named for its flavor that highlights the heat and sourness. Later, after continuous evolution and modulation in southwest China, it officially took over the streets and became a local specialty snack. When it comes to the origins of hot sour powder, the kick is widespread. It dates back to the Three Kingdoms period, when Liu Bei, Guan Yu and Zhang Fei got married, and the Taoyuan boss cooked food specially for them. He chose the sweet potato flour that he liked at that time, which means that the friendship between the three people is like this flour. He also added a spicy little peppercorn, along with Lao sauerkraut, brown sugar and yellow lotus flowers. Liu Bei means to let the three people understand that they are not afraid of ups and downs and develop from them. Later generations gradually turned it into "hot and sour powder" due to its sour and spicy taste. Preparation of "Hot and Sour Powder" Seasoning and Types of Sweet Potatoes: The sweet potatoes used in "Hot and Sour Powder" are prepared with noodles. The sour ingredients mainly include "fat sausage sweet potato", "cold powder sweet potato", "rib sweet potato", among which "fat sausage sweet potato" is the most famous. "Feichang Yao" is divided into "sour and spicy Baichang powder" and "original soup fat powder", which are sour and spicy taste and fresh and salty taste. The seasoning mainly consists of pepper, red pepper, green onion, bean paste, bean sprouts, bean sprouts, celery, vinegar, coriander, winter vegetables, Zhangfei beef foam, crispy soybeans, glutamic acid, etc. Hope it can help you.