How Long Does Sugar (White Granulated) Last in Mylar Bags?
Quick Answer: White granulated sugar lasts indefinitely in mylar bags — no oxygen absorbers needed. Sugar does not support bacterial growth. The main threat is moisture causing clumping. Use mylar simply as a moisture and pest barrier. Do NOT add oxygen absorbers as they cause sugar to harden.
30+ years (indefinite)
In Mylar + O₂
2-4 years
Without Mylar
None needed
O₂ per Gallon
low
Moisture Sensitivity
Sugar (White Granulated) Shelf Life Comparison
| Storage Method | Shelf Life |
|---|---|
| ✅ Mylar Bag + O₂ Absorber | 30+ years (indefinite) |
| Pantry (Original Packaging) | 2-4 years |
How to Store Sugar (White Granulated) in Mylar Bags
Pour sugar into mylar bag
Do NOT add oxygen absorber
Seal bag tightly
Store in bucket for pest protection
Storage Tips
No oxygen absorbers needed for sugar
Sugar lasts indefinitely when kept dry
Mylar acts as moisture and pest barrier
Store in cool dry place
Common Mistakes
Adding oxygen absorbers (hardens sugar into a brick)
Not keeping away from moisture
Storing near strong odors
Sugar (White Granulated) Storage FAQ
Does sugar need oxygen absorbers in mylar bags?
No. Do NOT use oxygen absorbers with sugar. The lack of oxygen causes sugar to harden into an unusable brick. Sugar does not support microbial growth, so O2 removal is unnecessary.
How long does sugar last in mylar bags?
White granulated sugar stored in sealed mylar bags lasts indefinitely (30+ years) as long as moisture is kept out. Sugar is one of the few foods that never spoils.
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