- The answer to the question ? How long does tequila last? is a matter of quality, not safety, assuming proper storage conditions - when properly stored, a bottle of tequila has an indefinite shelf life, even after it has been opened.
To maximize the shelf life of tequila for quality purposes, store in a cool dry area away from direct heat or sunlight; keep tightly closed when not in use.
Once a bottle of tequila is opened, the contents may begin to evaporate slowly and some flavor may be lost over time, but the tequila will remain safe to consume if it has been stored properly.
How to tell if tequila has gone bad? The shelf life of tequila is indefinite, but if tequila develops an off odor, flavor or appearance, it should be discarded for quality purposes.
Sources: For details about data sources used for food storage information, please click here