How Long Does Peanut Butter Powder Last in Mylar Bags?
Quick Answer: Peanut butter powder (PB2, PBfit) lasts 5-10 years in mylar bags with oxygen absorbers and desiccant. Regular peanut butter only lasts 6-12 months due to high oil content. Powdered peanut butter has 85% less fat, making it far better for long-term storage.
5-10 years
In Mylar + O₂
6-12 months
Without Mylar
300cc
O₂ per Gallon
medium
Moisture Sensitivity
Peanut Butter Powder Shelf Life Comparison
| Storage Method | Shelf Life |
|---|---|
| ✅ Mylar Bag + O₂ Absorber | 5-10 years |
| Vacuum Sealed | 1-2 years |
| Freezer | 1-2 years |
| Pantry (Original Packaging) | 6-12 months |
How to Store Peanut Butter Powder in Mylar Bags
Use powdered PB only (not regular)
Add desiccant
Add O2 absorber
Seal and label
Storage Tips
85% less fat than regular PB
Add desiccant for moisture protection
Reconstitute with water when ready to use
25g protein per cup
Common Mistakes
Storing regular peanut butter in mylar (goes rancid)
Skipping desiccant
Expecting 20+ year shelf life
Peanut Butter Powder Storage FAQ
Can you store peanut butter in mylar bags?
Regular peanut butter should not be stored long-term in mylar — the oils go rancid within 6-12 months. Peanut butter powder (PB2, PBfit) lasts 5-10 years because 85% of the fat is removed.
How long does PB powder last in mylar?
Peanut butter powder lasts 5-10 years in mylar with O2 absorbers and desiccant. Store in cool temperatures below 70F.
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