The shelf life of vinegar is stipulated by the state for the industry, and it also reflects the protection of consumers' rights and interests. The shelf life of bottled vinegar is generally about 3 years, and the vinegar used in diet is used according to this shelf life.

Rye vinegar mainly consists of five processes: steaming, fermentation, smoking, pouring and aging. Every step is hand-brewed, which contains a variety of vitamins, which can promote the secretion of gastric juice, inhibit the rise of blood sugar and reduce blood lipids.