What about flavored sparkling water? Ah, here’s where things get a little more interesting. Those little fruit essences—lime, grapefruit, or “berry blend”—can change over time.
Because flavored sparkling waters often have natural flavors (which are delicate little divas), they can start to taste a bit off after a few months. The flavor might get weak, bitter, or just plain weird. It’s not dangerous, but it’s not exactly a party in your mouth.
A good rule of thumb? Check the “best by” date on the can or bottle. For plain sparkling water, that date is mostly about fizz. For flavored stuff, it’s when the taste starts to wave goodbye.
