How long is triple sec good for once opened?
Triple sec liqueur keeps quality for about a decade unopened, and two to three years once opened. Your experience may vary, though. The syrup should stay perfectly fine until the date on its label, but please note that its quality starts to degrade faster once you open it up.
Is Triple Sec kept cold?
Due to its high alcohol content, triple sec has an extremely long shelf life and with no need for refrigeration or freezing. As long as it is kept in a cool, dark, dry place, unopened triple sec can last for over a decade before going bad, and up to three years once opened.
Does Triplesec go bad?
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.