Best Mylar Bags
The best mylar bags for long-term storage are thick (5 mil or more), the right size for your food, and come with or without oxygen absorbers. 1-gallon suits most staples; 5-gallon lines buckets.
Top picks
SHXWELL 100pcs Mylar Bags for Food Storage 12 Mil Th
Everyday staples
A 100-pack of 1-gallon bags, the versatile size for rice, beans and flour.
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Home Sensei 10pcs 5 Gallon Mylar Bags for Food Stora
Bulk buckets
5-gallon bags for lining food buckets and bulk storage.
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SHXWELL 50pcs 1 Gallon Mylar Bags for Food Storage
Budget bags
A 50-pack of 1-gallon bags at an entry price.
Check price on AmazonWhat matters in a mylar bag
Thickness (5 mil and up resists punctures and pests), the right size for your food, and a clean heat-seal edge. Bags that include oxygen absorbers save a separate purchase.
Closure method matters as much as thickness. A heat-sealed edge made with a clamp-style or impulse sealer creates a permanent, fully airtight seam that is the standard for anything meant to last years, while zip-seal or slide-lock mylar bags trade a little airtightness for the convenience of reopening and resealing the same bag repeatedly. Zip-seal styles suit shorter-term pantry staples you dip into often, whereas heat-sealed bags belong in buckets you do not plan to open for a long while. If you go with heat-sealing, run the sealer along the same line twice to catch any gaps from wrinkled mylar.
Related guides
Mylar Bags & Oxygen Absorbers Database
ComparisonMylar Bags vs Vacuum Sealing
InformationalHow Many Oxygen Absorbers Do I Need?
InformationalMylar Bag Size Guide
Frequently asked questions
What mil thickness of mylar bag should I buy?
5 mil is a solid general-purpose minimum for pest and puncture resistance, 7 mil adds margin for bags stored directly on rough shelving or floors, and anything below 4 mil suits short-term use better than years-long storage.
Do I need a heat sealer, or can I fold and clip the bag closed?
Folding and clipping beats nothing for a quick test, but it is not airtight, so for anything stored more than a few months a proper heat seal or a quality zip-seal closure is worth the small extra cost.
Can mylar bags be reused after being opened and emptied?
They can be reused for short-term dry storage once wiped clean and fully dried, but the original heat seal is gone, so reuse them with a fresh oxygen absorber and a new seal rather than trusting an old fold or clip to keep air out.
What size mylar bag should I buy for a standard 5-gallon bucket?
Look for bags labeled for 5-gallon buckets, typically around 20 by 30 inches, since an undersized bag will not fold over the food properly and an oversized one wastes mylar and makes a clean heat seal harder to get.