The shelf life of vermouth is 1-10 years. Vermouth is an Italian wine usually made from a blend of multiple grape varieties. The shelf life of vermouth varies depending on the year of production, brewing process, storage conditions and other factors. Generally speaking, its shelf life is between 1-10 years. Once the vermouth is opened, its refrigerated shelf life is about 1 year. When drinking wine, it is recommended to choose fresh, high-quality wine as much as possible for a better tasting experience.