How to tell if triple sec has gone bad? The shelf life of triple sec is indefinite, but if triple sec develops an off odor, flavor or appearance, it should be discarded for quality purposes.

How can you tell if triple sec has gone bad?

Inspect the smell and flavor of your triple sec. If it smells off, get rid of it. If the taste is flat or lacks the orange flavor, you can decide whether to discard it if you're unhappy with the quality. If you notice any strange changes in the appearance, odor, or taste of your triple sec, make sure to get rid of it.

Can old triple sec make you sick?

Triple-sec is a high-proof alcoholic beverage, so it doesn't really go bad. Unless, of course, you help it go bad be leaving the cap off, or allowing some contaminants into the bottle.