How long does salt last?
Pure salt never goes bad; iodized salt is best used within about 5 years because the iodine slowly fades.
| Salt | |
|---|---|
| Unopened | Indefinitely (iodized salt: about 5 years for full iodine content) |
| Opened | Indefinitely if kept dry |
| Ideal storage | Dry and covered; humidity causes clumping, not spoilage. |
Storage tips
- Store extra salt for food preservation as well as cooking.
Signs it has gone bad
- A rancid smell, often described as crayons, putty or old paint (oils, nuts, nut butters, whole-milk powder)
- Mold on the surface or under the lid
- Off colors or a sour smell
- Hard clumps in sugar or salt are only moisture and are harmless; break them up
Related
- Shelf-Life Estimator
- Emergency food storage guides
- Shelf Life Chart: How Long Emergency Supplies Last
- Track expiry in the Supply Locker
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