What Is Triple Sec, And How Is It Different From Cointreau And Grand Marnier? - Chowhound

Different types of alcoholic beverages have different shelf lives. This is especially true after opening. An open bottle of beer, champagne, or prosecco, for instance, will go flat almost immediately, and a bottle of wine will start to change flavor into something rather unpleasant to drink after a few days. On the other hand, most opened bottles of liquor with high alcohol content last a few years on the shelf…