The sight of a large packet containing less food has led many people to believe they are being cheated. However, food products are generally sold by weight, not by how full the packet looks.
Every chips packet clearly states its net weight, allowing consumers to know exactly how much product they are purchasing. The empty space, known in the packaging industry as “functional slack fill”, is legally acceptable when it serves a genuine purpose, such as protecting fragile food, preserving freshness or accommodating packaging requirements. That does not mean every oversized package is beyond criticism, but in the case of chips, the extra space is largely a practical necessity rather than a marketing gimmick.
The next time you tear open a packet of chips and notice the empty space inside, remember that it is doing much more than making the bag look bigger. The nitrogen filling helps slow oxidation, keeps moisture away, preserves the snack’s flavour and creates a protective cushion that prevents the chips from turning into crumbs during transport.
In other words, you are not paying for air. You are paying for a packaging system carefully designed to ensure that the first chip is just as crisp and satisfying as the last. That’s one reason your favourite snack arrives tasting fresh instead of looking like a bag of seasoned potato dust.
