Quick answer
Refrigerate opened jarred roasted red peppers and use the exact maker's directions. Mezzetta recommends enjoying its Roasted Red Bell Peppers within 5–7 days after opening. Cento recommends its roasted peppers within seven days. These are named-product directions, not a shelf life for every jar of peppers. Mezzetta and Cento
Keep the product examples separate
| Product or state | Guidance |
|---|---|
| Unopened commercial jar | Follow its date and storage instructions; a chilled product must remain chilled. |
| Opened Mezzetta Roasted Red Bell Peppers | Refrigerate; maker recommends 5–7 days from opening. |
| Opened Cento roasted peppers | Maker says cover with water, refrigerate and consume within seven days. |
| Another roasted-pepper product | Use its own label, including any shorter instruction. |
Cento's water direction belongs to its product. It is not permission to dilute another brand's packing liquid. Likewise, Mezzetta distinguishes roasted red bell peppers from vinegar-packed peppers; do not select the longer pickled-pepper period because the jars look similar.
Count from the first opening
Put the opening date on the lid or storage container. A later sandwich, a fresh spoon or transfer to another container does not restart the period. Keep the original label or a photo so the product directions remain available.
Take out the portion needed and return the remainder to cold storage. Avoid combining old and newly opened jars or adding fresh peppers: neither creates a validated new keeping period. FDA recommends maintaining refrigerated food at 40°F (4°C) or below. FDA storage guidance
Freeze surplus before it becomes questionable
Cento offers freezing its roasted peppers in a plastic container as an option. Its inspected instruction gives no precise frozen period. Freeze while the food is still properly handled, follow the product directions and keep the original opening history; this guide establishes no fresh refrigerated allowance after thawing. Cento FAQ
An unopened jar's total shelf-life statement is not automatically time remaining after you purchase it. Use the printed date rather than calculating a new expiry from the shopping receipt.
FAQs
Are black specks always mold?
Cento explains that roasting can leave dark char on its peppers. That product observation does not identify every unusual patch or clear fuzzy growth, a leaking jar or unsafe storage. Discard suspicious food without tasting it. Cento
Can I add oil to keep peppers longer?
No extension is established by adding oil. Homemade peppers in oil and freshly roasted peppers need their own validated handling guidance. They do not inherit a commercial jar's directions.
Do these dates apply once peppers go into a recipe?
No. A dairy dip, rice dish or pasta salad has different ingredients and handling. Follow the finished food's guidance and retain the earlier age of its components. The pepper jar's remaining days do not become a fresh period for the whole dish.
Sources
Sources and draft evidence reviewed October 31, 2026. Manufacturer advice applies to the named product; follow stricter local guidance and your package. How we research our guides.