How Long Will Soda Stay Carbonated Unopened?
How Long Will Soda Stay Carbonated Unopened? Unopened soda bottles retain their carbonation the longest, exceeding the printed sell-by date on their labels. When stored under optimal conditions, unopened bottles of soda can stay fizzy for up to nine months beyond this marked date. How long does carbonation last in unopened soda? Pantry Fridge Soda