Dairy · Storage guide
How long does butter 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 | 1 year |
| Pantry room temp | Not recommended |
| After opening | about 2 weeks (refrigerated) |
Times are for unopened, properly stored butter and reflect best quality. Always use your senses and follow any date on the package.
Signs butter has gone bad
- Sour or off smell — the clearest early warning for any dairy product.
- Lumps, separation, or a slimy texture in something that should be smooth.
- Visible mould, discolouration, or a bloated, swollen package.
When in doubt, throw it out — the cost of a spoiled meal isn't worth the risk.
Best way to store butter
Keep dairy in the coldest part of the fridge (the back, not the door, where the temperature swings every time you open it). Store it in its original sealed container and reseal tightly after opening. Most dairy freezes for longer storage but the texture changes — best for cooking rather than eating fresh.
Frequently asked questions
How long does butter last in the freezer?
Butter keeps for about 1 year in the freezer at 0 °F (−18 °C). Wrap it airtight to prevent freezer burn and label it with the date. Thaw in the fridge before use.
How long does butter last in the fridge or refrigerator?
Unopened butter keeps for about 4 weeks in the fridge. After opening, use it within about 2 weeks.
How can I tell if butter has gone bad?
Sour or off smell — the clearest early warning for any dairy product. Lumps, separation, or a slimy texture in something that should be smooth. Visible mould, discolouration, or a bloated, swollen package. When in doubt, throw it out.
Sources
Shelf-life figures and food-safety guidance are based on these authoritative sources:
Stop guessing
Tired of googling expiry dates?
Expireless tracks your butter and 1,000+ other foods automatically — scan a receipt or add it once, and get a reminder before anything spoils. No more mental load.
Android · Web · iOS coming soon · Free · No account needed