A nozzle, and that is the snorkel, is then inserted into your packaging material. It pulls a vacuum and then flushes the modified atmosphere in to the bundle. The nozzle is taken off and the package is heat sealed. This method is well suited for bulk and enormous functions.[eleven] https://johnnyzcccb.wikipresses.com/5258958/the_definitive_guide_to_premade_food_packaging_machines