Due to its properties, vinegar is one of the longest-lasting foods of all. The vinegar is best stored in a dry, cool and shaded place. In this way, it retains its properties for a long time.
Along with salt and sugar, vinegar is one of the foods that do not require a best-before date. Unopened up to 10 years and opened up to 2 years with proper storage. So cool, dark and tightly closed.