Torani syrups do have a shelf life and can go bad over time. However, if stored properly, they have a relatively long shelf life. The shelf life of Torani syrups can vary depending on factors such as the specific flavor, storage conditions, and the presence of any expiration date on the bottle.
Generally, unopened bottles of Torani syrups can last for about 1 to 2 years when stored in a cool, dry place away from direct sunlight. Once opened, the syrups can retain their quality for several months to a year, depending on the flavor. It's recommended to refrigerate opened bottles to help preserve their freshness.