How Long Does Salt (Table & Canning) Last in Mylar Bags?
Quick Answer: Salt lasts indefinitely in mylar bags — no oxygen absorbers needed. Like sugar, salt does not spoil. The main concern is moisture causing clumping. Iodized salt may lose iodine potency after 5 years, but the salt itself remains safe and usable forever.
30+ years (indefinite)
In Mylar + O₂
5+ years
Without Mylar
None needed
O₂ per Gallon
medium
Moisture Sensitivity
Salt (Table & Canning) Shelf Life Comparison
| Storage Method | Shelf Life |
|---|---|
| ✅ Mylar Bag + O₂ Absorber | 30+ years (indefinite) |
| Pantry (Original Packaging) | 5+ years |
How to Store Salt (Table & Canning) in Mylar Bags
Pour salt into mylar bag
Do NOT add O2 absorber
Seal tightly
Label with type (table/canning/kosher)
Storage Tips
No oxygen absorbers needed
Salt never spoils
Canning salt is best for long-term storage
Iodized salt loses iodine potency in 5 years
Common Mistakes
Adding oxygen absorbers (unnecessary)
Using iodized salt for 10+ year storage
Not protecting from moisture
Salt (Table & Canning) Storage FAQ
Does salt expire in mylar bags?
No. Salt is a mineral that does not spoil, degrade, or lose nutritional value. Stored in sealed mylar bags, salt lasts indefinitely. Iodized salt may lose iodine potency after 5 years, but remains safe to eat.
Should you use oxygen absorbers with salt?
No. Salt does not support bacterial growth and does not oxidize. Oxygen absorbers are unnecessary and may cause clumping.
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