A nozzle, which is the snorkel, is then inserted to the packaging content. It pulls a vacuum then flushes the modified atmosphere into the bundle. The nozzle is taken out as well as the deal is warmth sealed. This technique is suitable for bulk and large operations.[11] Secondary packaging methods https://www.linpack.com/news/the-top-advantages-of-using-a-vacuum-packaging-machine-for-your-business