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How long does ketchup (opened) last?
Quick answer
Ketchup (opened) lasts 6 months in the refrigerator, and about 4 weeks at room temperature.
| Where | Safe for |
|---|---|
| 🏠 Room temperature (counter) | 4 weeks |
| 🧊 Refrigerator (≤40°F / 4°C) | 6 months |
| ❄️ Freezer (0°F / −18°C) | Freezing isn't recommended — it ruins the texture or isn't safe |
Good to know1 month pantry, 6 months fridge.
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How to tell if ketchup (opened) has gone bad
Pantry items usually go stale before they go dangerous — with a few important exceptions. Trust your senses before any calculator — including ours. Throw ketchup (opened) away if you notice:
- An off, sour, or unusual smell that wasn't there when fresh
- A slimy, sticky, or tacky surface texture
- Visible mould or unexpected discolouration
- It's been past the safe window in the table above
⚠️ Bacteria that cause food poisoning often produce no smell, taste, or visible change. Food can look perfectly fine and still make you sick — that's why the time limits matter even when everything seems okay.
Storage tips for ketchup (opened)
Airtight containers beat original packaging for anything opened. Most pantry 'spoilage' is really staleness from air exposure.
Store pantry goods cool and dark. Heat and light are what turn oils rancid and fade flavour long before any safety issue.
Not sure about your exact situation?
Tell the checker where your ketchup (opened) has been and for how long — get an instant verdict.
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