Vitamins & supplements · Storage guide
How long do probiotics last? Fridge, freezer & pantry
Storage temperatures: keep the fridge at ≤4 °C (40 °F), the freezer at −18 °C (0 °F), and the pantry cool and dry at room temperature.
| Fridge ≤4 °C · 40 °F | about 4 weeks |
|---|---|
| Freezer −18 °C · 0 °F | Not recommended |
| Pantry room temp | Not recommended |
| After opening | about 4 weeks (refrigerated) |
Times are for unopened, properly stored probiotics and reflect best quality. Always use your senses and follow any date on the package.
Signs probiotics have gone bad
- Off or rancid smell (especially fish-oil and seed-based supplements).
- Discolouration, crumbling, or a changed texture.
- Moisture or clumping inside the bottle.
When in doubt, throw it out — the cost of a spoiled meal isn't worth the risk.
Best way to store probiotics
Keep supplements in their original sealed bottle in a cool, dry place away from light and humidity — the bathroom cabinet is usually too humid. Some (probiotics, fish oil) keep best refrigerated; check the label.
Frequently asked questions
How long do probiotics last in the freezer?
Freezing probiotics is not recommended — they lose too much texture or quality. Store them refrigerated instead, as shown in the table above.
How long do probiotics last in the fridge or refrigerator?
Unopened probiotics keep for about 4 weeks in the fridge. After opening, use them within about 4 weeks.
How can I tell if probiotics have gone bad?
Off or rancid smell (especially fish-oil and seed-based supplements). Discolouration, crumbling, or a changed texture. Moisture or clumping inside the bottle. When in doubt, throw it out.
Sources
Shelf-life figures and food-safety guidance are based on these authoritative sources:
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