Does tequila go bad?
An unopened bottle of tequila has an indefinite shelf life, which means it won’t ever really expire. But once that bottle is opened, it will remain at peak quality for 1 year. After that, it’s likely to decline in smell, flavor and appearance.
If the tequila is stored improperly, it could affect the flavor; if it smells sour or off, it’s probably best to toss it. Read our article to learn more about how to properly store tequila.