How long does mashed potatoes last?
Unopened, it keeps in the cupboard for about 12 months. Once opened, in the cupboard for about 3 weeks.
This refers to: Instant mashed potato flakes.
Shelf life of mashed potatoes at a glance
| Storage | Unopened | Opened |
|---|---|---|
| Cupboard | 12 months | 3 weeks |
Reseal opened bags and keep them dry. Keep prepared mash in the fridge and eat it within 1 to 2 days.
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.