Condiments, Sauces & Canned Goods
How long does jarred spaghetti sauce last in the fridge after opening?
An open jar of spaghetti sauce gets 4 days in the fridge — if Wednesday’s pasta isn’t already on the plan, freeze the leftover half tonight.
How long does it keep?
| Pantry, from purchase | 18 months |
|---|---|
| Fridge, opened | 4 days |
Can it sit out?
Unopened, jarred spaghetti sauce 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 jarred spaghetti sauce has gone bad
- Mold freckles on the surface or ringing the shoulder of the jar
- A winey, fermented smell over the tomato
- Sauce risen up the jar as though it’s still working
When in doubt, throw it out.
Leftover sauce freezes cleanly in a zip bag laid flat — it thaws in about the time the pasta water takes to boil.
Quick answers
How long does jarred spaghetti sauce last in the fridge after opening?
An open jar of spaghetti sauce gets 4 days in the fridge — if Wednesday’s pasta isn’t already on the plan, freeze the leftover half tonight.
How long can jarred spaghetti sauce sit out?
Sitting out isn’t the safety question for unopened jarred spaghetti sauce — 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).