When looking for a simple and cost-effective packaging solution, poly bags are typically one of the first options that come to mind. Although the barrier quality of these pouches is significantly lower than a foil material, they still provide an air-tight environment. Since many products don't require an extended shelf life, poly is being used as a great alternative. Sizes range from 2 oz. to 5 lb. The 2 oz. size is available with or without a zipper for sampling convenience, while the remaining sizes all have zippers included for resealability. Tear notches are applied to allow enough room for sealing while still leaving space above the zipper to reopen the bags.
Many of our stand-up pouches have a zipper and/or a built-in one way degassing valve that lets gas generated by your product escape while maintaining a vacuum. The valve is used often with products like coffee. The short description shows if a pouch has a zipper or a valve.