How long does cornstarch keep after opening in the pantry?
PantryAfter opening
18 months
This is storage guidance from the cited FoodKeeper record, not a guarantee that food remains safe through the final day.
Cool, dry pantry or cupboard
Answer basis
- Food
- Cornstarch
- Preparation or package state
- No additional state listed
- Storage
- Pantry
- Timing
- After opening
- Source field
- Pantry_After_Opening
Source: USDA FSIS FoodKeeper Data, data version 128.
See every listed condition for cornstarch