Corn flakes can be good for up to a year if unopened and stored properly, but only for up to three months once the box is opened.
According to FoodSafety.gov, the shelf life of corn flakes depends on whether the box is opened or unopened:
- Unopened: For ultimate freshness and quality, consume an unopened box within a year of storing it in your pantry.
- Opened: Once opened, enjoy the corn flakes within three months for the best quality.
Here's a table summarizing the shelf life:
| Condition | Shelf Life |
|---|---|
| Unopened | Up to 1 year |
| Opened | Up to 3 months |
