In lays packet nitrogen gas is filled.. it is done to keep chips fresh and tasty.. it also increases shelf life... it also cushions the contents in packet...
In each and every packaging item we generally use N2(nitrogen) bcs it does'nt reacts with the food item .
Lay's packs are filled with nitrogen gas to preserve the chips by preventing oxidation. This helps maintain their freshness and quality by protecting them from crushing during transport. The use of nitrogen extends the shelf life of the product significantly.
;