Vertical packaging, also known as vertical form fill seal (VFFS) packaging, is a method used in the packaging industry to create sealed bags or pouches from a flat roll of packaging material. The process involves forming a vertical tube or cylinder from the packaging material, filling it with the product from the top by gravity, and then sealing the bag to create individual packages. This method is widely used for packaging various types of products, including food items, pharmaceuticals, and other consumer goods.