How Long Does Fresh Caviar (in Jar) Last in the Fridge?
Written by Jordan Morley · Storage times from the USDA FoodKeeper database · Last updated 28 October 2026
Fresh Caviar (in Jar) keeps 1–4 weeks while sealed and 2 days once opened, in a fridge running at 0–5°C.
Storage tips for fresh caviar (in jar)
- Fridge at 0–5°C. A fridge thermometer is the cheapest food-safety upgrade — many home fridges run warmer than their dial suggests.
You can also check the calorie content of fresh caviar (in jar) alongside its safety information. Want to know exactly what's in your food? Our ingredient checker covers E-numbers, allergens and vegan status.
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Store it properly
Fridge thermometer
These storage times assume 0–5°C — check what your fridge actually runs at.
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More storage essentials
Vacuum food sealer
Removes the air that speeds spoilage — extends shelf life by days.
Check Price →Airtight glass containers
Fridge, freezer and microwave safe — one less transfer step.
Check Price →Fresh Caviar (in Jar) next to similar foods
| Food | Fridge time |
|---|---|
| Shucked Clams, Mussels and Oysters | 3–10 days |
| Fresh Clams, Mussels and Oysters | 5–10 days |
| Fresh Caviar (in Jar) | 1–4 weeks |
| Cold-Smoked Fish (Air Pack) | 14–30 days |
| Cold-Smoked Fish (Vacuum Pack) | 21–30 days |
Of the 25 fish and seafood foods with a fridge time in this guide, fresh Caviar (in Jar) keeps for longer than 18 and less time than 6.
Common questions
How long does fresh caviar (in jar) last in the fridge?
1–4 weeks while sealed and unopened, and 2 days once opened, in a fridge running at 0–5°C. Count from the day you open it, and use the printed date if it is earlier.
How can I tell if fresh caviar (in jar) has gone off?
A strong fishy or ammonia smell, a slimy surface, dull flesh or milky liquid in the pack are all reasons to bin it. Do not rely on this alone: the time guideline matters even when everything looks fine.
Can I freeze fresh caviar (in jar) to keep it longer?
Freezing is not recommended for this food; the texture tends to suffer badly. Buy or cook only what you will use in time.
Does my fridge temperature really matter?
Yes. These times assume a fridge at 0–5°C, which is what the Food Standards Agency says to set it to. Bacteria grow faster in a warmer fridge, and many fridges run warmer than their dial suggests, so a cheap fridge thermometer is worth having.
Related answers
Primary source: USDA FoodKeeper.
General information only, not medical advice: see the medical disclaimer. Feeling unwell after eating something? Contact NHS 111 or your GP.