PackFreshUSA: 5-Gallon (19″ x 28″) AirTight Mylar Bags for Long-Term Food Storage – Genuine Standard Thickness -Air Tight – Heat Sealable – Food Grade – Rounded Corners – Free Guide (50)

Exceptional Quality: Our bags have rounded corners to protect your other stored items from puncture or damage. The strong Mylar film has a burst strength of 70 psi, equivalent to the weight of 2 1/2 cinder blocks per square inch. These bags are strong, durable, and easily seal with a vacuum-sealer, iron, or hair-straightening iron.
Low Oxygen Transmission Rate: Mylar bag films provide three layers of protection and offer an extremely low Oxygen Transmission Rate (OTR) due to its thick foil laminate layer. This safeguards your food against the elements for long-term preservation.
Extended Shelf Life: Provides over 25 years of protection.