The zipper seal sandwich bags proved to be the best of the bunch, with its high-quality materials and useful size. The gallon-sized zipper seal sandwich bag is ideal for storing large quantities of food in the freezer or pantry. In addition to the convenient zip closure system, our review team loved that this bag can stand up without support while being filled.
The bottom of the bag has an expandable bottom that creates a flat and stable base; this makes filling the zipper seal sandwich bag convenient and easy to store away in a space-efficient manner. This product is also one of the most consistently well-built zipper seal sandwich bags we reviewed and never sprouted any leaks during our testing.
While we appreciated the ease and security offered by the slide closure, it also proved to be the bag's biggest weakness. In our drop tests, every zipper seal sandwich bag we dropped blew out the zipper on the first or second drop. After filling one to the brim, we had one zipper fail when trying to close the zipper seal sandwich bag. Overall, this is a durable, leak-free bag that is user-friendly and stores well.