How long does flour last?
Unopened, it keeps in the cupboard for about 12 months. Once opened, in the cupboard for about 6 months.
This refers to: White wheat flour (all-purpose).
Shelf life of flour at a glance
| Storage | Unopened | Opened |
|---|---|---|
| Cupboard | 12 months | 6 months |
| Fridge | – | 12 months |
Keep dry, cool and airtight to protect against moisture and pantry pests. Wholemeal flour goes rancid sooner because of its oil, after about 3 to 6 months.
Past its date does not mean spoiled
These are guide values for food stored correctly. A best-before date is not a throw-away date: many products are still fine after it. Check how it looks, smells and tastes. Mould, an unusual smell or a bulging can are reasons to throw it away. A use-by date is different: do not eat the food after it.