Expiration & Storage Tips
When does mountain dew expire?
Unopened Mountain Dew lasts about 6-9 months past the printed date on the package if stored at room temperature. Once you've popped the cap, it's best to finish it within a week, kept refrigerated. Because of its high sugar content, it's generally not recommended to freeze Mountain Dew as it might affect the product's quality.
How do you tell if mountain dew is bad?
With Mountain Dew, telling if it's spoiled is quite easy. If it's flat (i.e., it has lost its carbonation) and tastes sour, then it's time to toss it. The change in taste is due to the increased acidity. You might also notice an off-odor. Sometimes, the plastic bottle can swell and distort over time, which is another telltale sign of spoilage.
Tips for storing mountain dew to extend shelf life
• Always keep unopened Mountain Dew bottles in a cool, dry place, away from sunlight. The pantry or a kitchen cabinet is a good choice.
• Once opened, it's best to refrigerate the Mountain Dew to keep it chill and refreshing.
• Ensure the cap is sealed tightly after each use to prevent air from entering, which can speed up the spoilage.
• If you've accidentally left the cap off for a prolonged period, there's a high chance your drink has lost its carbonation and flavor. Consider it spoiled, and in this case, it's best thrown away.
• Avoid freezing Mountain Dew, the high sugar content can limit freeze and change the product quality when thawed.