Duplex Types Duplex premade pouch packing machines fill and seal custom made premade pouches, two at a time, at speeds of as much as 120 cycles for each minute. View Machines The a few most favored MAP techniques are gas flushing, barrier films, and scavenger or desiccant packaging. Curry https://www.linpack.com/news/how-vacuum-packaging-machines-are-transforming-food-preservation