How Long Do Retort Pouches or Boxes Last?
Storage method
Retort pouches or boxes — refrigerator, after opening
3 to 4 days in the refrigerator
- Refrigerator at or below 40 °F (4 °C)
- Applies after opening
Pick a valid date to calculate the recommended use-by window.
Source: USDA FSIS FoodKeeper (v128, snapshot 2026-07-24) · About this data · Report an issue
FoodStorageCheck — official USDA FoodKeeper guidance · foodstoragecheck.com
All official guidance for retort pouches or boxes
Every storage entry the USDA FoodKeeper dataset lists for this food, exactly as published (v128, snapshot 2026-07-24). “No official duration listed” means the source does not provide a number for that combination — not that the food lasts forever.
Retort pouches or boxes
| Where | Condition | Official time |
|---|---|---|
| Refrigerator | after opening | 3 to 4 days |
Retort pouches or boxes
| Where | Condition | Official time |
|---|---|---|
| Refrigerator | after opening | 3 to 4 days |
Common questions about retort pouches or boxes
- How long do retort pouches or boxes last in the refrigerator?
- 3 to 4 days in the refrigerator, after opening, per the USDA FSIS FoodKeeper dataset. Times assume a refrigerator at or below 40 °F (4 °C).
- How long do retort pouches or boxes last after opening?
- Once opened — refrigerator: 3 to 4 days, per the USDA FSIS FoodKeeper dataset.
Two reminders that apply here
Keep the fridge at 40 °F (4 °C) or below.Refrigerator times in this dataset assume a refrigerator held at or below 40 °F. An appliance thermometer is the reliable way to check.
The two-hour rule.Perishable food left at room temperature for more than 2 hours (1 hour above 90 °F / 32 °C) should be discarded, per FoodSafety.gov. Storage windows assume food was refrigerated promptly.