A nozzle, which can be the snorkel, is then inserted in to the packaging substance. It pulls a vacuum and afterwards flushes the modified atmosphere in to the bundle. The nozzle is removed and the deal is heat sealed. This process is suitable for bulk and large operations.[11] Sourcing https://dantegijji.dekaronwiki.com/1686220/new_step_by_step_map_for_vacuum_packaging_machine