Shelf Stable Foods
How long does soup base last?
USDA answers soup base with the package use-by date — refrigerate the tub the moment it’s open and let that date lead.
How long does it keep?
| Pantry | Package use-by date |
|---|
- Pantry: Refrigerate after opening.
Can it sit out?
Unopened, soup base is shelf-stable. Once opened, treat it as perishable — the FSIS 2-hour rule applies.
Perishable food left at room temperature for more than 2 hours should be thrown out — 1 hour if it’s 90°F or hotter (a picnic, a hot car, a summer kitchen).
How to tell if soup base has gone bad
- Mold on the paste or ringing the underside of the lid
- A sour or fermented edge under the usual roasted smell
- Paste gone watery or split, with liquid standing on top
When in doubt, throw it out.
The spoon that’s been in the pot never goes back in the tub — that’s how a base picks up mold early.
Quick answers
How long does soup base last?
USDA answers soup base with the package use-by date — refrigerate the tub the moment it’s open and let that date lead.
How long can soup base sit out?
Sitting out isn’t the safety question for unopened soup base — once opened, the FSIS 2-hour rule applies. Perishable food left at room temperature for more than 2 hours should be thrown out — 1 hour if it’s 90°F or hotter (a picnic, a hot car, a summer kitchen).