One of the most common varieties of these bags includes paper pouches. These bags are not meant for preserving food items for long since they do not come with an airtight seal. Food packed in paper pouches must be consumed early. These bags come in many attractive colors and are ply-lined. The square bottoms of these bags help them in standing up-right on shelves.
Apart from the paper bags, snacks are also packed in poly stand up bags that promise a very good shelf life for food products. These bags prevent the food from becoming stale due to moisture. Also, they come with a zipper and have a poly side which enables the customers to see contents of the bag from outside.
Another variety for snack packaging is foil pouches. These are manufactured using aluminum foil which helps in sealing the pouch better.