How long does the seal on a zip locking bag last?
When using the recommended bags the seal longevity depends on each individual bag. Proper, complete engagement of the zipper from one end to the other is the key to the seal lasting as long as possible. Another key, and one you don’t have control over, is how each bag was manufactured. Occasionally you may come across a bag every so often that leaks air from edges of the zipper and the seal is gone with in minutes. The VacnSeal is ideal for households that are opening and closing zip lock bags on a regular basis, or ones that want their snack foods to last longer in the pantry, or want their cheeses to be preserved until they are used again within the week. Research has shown that the Reynolds® Vacuum Freezer Bags are the best bags to use currently. They held suction for the longevity of the study, which was 4 weeks long.