No one in the history of civilisation has complained about too many broken chips in a bag.
When people started complaining about the amount of air being included in the bag, "prevents broken chips" was the bs marketing PR line put out. It's just not true.
You know the easiest way to prove it's bs? Pringle's have introduced more air into their cans at the same time. Why? To match the shrinkflation of their competitors. Because adding air to a can of Pringle's can only result in MORE broken chips. Which, again, no one in the fucking world has ever complained about.
I am absolutely sad when I get a bag of broken chips. And it definitely works you can test it yourself with some ziplock bags. There most likely is some shrinkflation hidden in that air, but the majority of it probably is playing an important part for people like me who love their chips but hate the crumbs.
There is definitively a point of diminishing returns. Half a bag of air just allows the chips to smash into each other and break. Only enough air to prevent outside forces compressing the chips is fine.
I'm not going to bother to find out when and how often these bags of completely crumbed chips made you sad in your life. They would no doubt be negligible and more related to transport issues than packaging issues.
Do you think more air will protect more chips? Do you not think there is a point where too much air allows the chips to move around too much in transport and thus you get more broken chips? A point of diminishing returns?
The nitrogen is to keep them from going stale in oxygen. The amount of nitrogen across various chip manufacturers ranges from 19% gas all the way to 59%. That discrepancy range is where the psychology comes into play.
The gas is partially pack fill to keep them from getting crushed, obviously. My whole point was that it is significantly more gas than necessary for pack fill.
Fact is if you make the package look bigger, people think there's more. There's a reason we have laws about unnecessary slack fill. Nice try though, Dwight