The history of vinegar brewing in Langzhong can be traced back to the Warring States period, when Bazi brought the vinegar brewing technology from the Imperial Palace of the Zhou Dynasty to Langzhong. In the late Ming and early Qing dynasties, Suo Yiting pioneered the use of wheat as the main raw material to brew vinegar. Over the past 300 years, it has developed continuously and formed a street of vinegar houses. 19 15, baoning vinegar brewed by Tian Fushun vinegar workshop won the gold medal of Panama Pacific World Expo. 192 1 year, won the silver medal of Chengdu Quanye Association. 1957, won the the State Council quality award pennant. 1988, won the gold medal of the first food Expo in China. 1June, 1997, won the title of famous brand in China food industry. Baoning vinegar is excellent in color and flavor, slightly sour and not astringent, mellow and sweet, and does not rot for a long time. The amino acid content is extremely high, and it contains a variety of nutritional trace elements. Besides seasoning, it has many functions, such as warming kidney and strengthening spleen, removing dampness to relieve summer heat, expelling wind and cold, preventing colds, clearing intestines, treating carbuncle and preventing cancer.

Baoning vinegar, produced in Langzhong city, is a famous special product with a long history. It was founded in the late Ming and early Qing Dynasties and has a history of more than 300 years. It is famous for its high quality, delicious taste, aseptic fitness and nourishing the human body. It is as famous as Jiangsu Zhenjiang vinegar and Shanxi aged vinegar. It is brownish red in color, soft in sour taste, mellow and sweet, and does not rot for a long time. When the vinegar bottle is unscrewed, it smells fragrant and sour. Drop it into the bowl and rotate it for a week, and the vinegar juice will stick to the edge of the bowl evenly; Deliberately tasting, I suddenly feel that my mouth is full of saliva, sweet and sour, with a lingering fragrance, slowly sour and sweet for a long time, which can be called the top grade of vinegar.