How long does apple sauce last?
Unopened, it keeps in the cupboard for about 12 months. Once opened, in the fridge for about 5 days.
This refers to: Apple sauce in a jar.

Shelf life of apple sauce at a glance
| Storage | Unopened | Opened |
|---|---|---|
| Cupboard | 12 months | – |
| Fridge | – | 5 days |
Store unopened jars cool and dark; the best-before date is often later. Once opened, keep it covered in the fridge and finish within about 5 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.