A nozzle, which can be the snorkel, is then inserted into the packaging content. It pulls a vacuum and after that flushes the modified atmosphere in to the offer. The nozzle is taken off along with the package is heat sealed. This process is suitable for bulk and large operations.[eleven] https://www.linpack.com/news/the-hidden-benefits-of-vacuum-packaging-machines-for-e-commerce-and-retail