What Is the Shelf Life of Coca-Cola?

The shelf life of a 0.5-liter bottle of Coca-Cola is 150 days, and the shelf life of a 1.5-liter bottle is six months. Coca-Cola should be stored at room temperature, but it should not be stored in direct sunlight.

While it is not harmful to drink Coca-Cola that has been stored so long that it has gone flat, which may occur a few months after its sell-by date, it does not taste as good. According to EatByDate.com, the artificial sweeteners in diet beverages break down, which causes a spoiled Diet Coke to taste much worse and potentially lead to health risks if it is ingested.