Why Are Potato Chip Bags Always Filled With Air?
Almost everyone has had the same thought at least once. "Why is there so much air in this bag? There are barely any chips inside!" Many people assume manufacturers intentionally make the bag look bigger so the product appears more generous than it really is. Surprisingly, that's not the real reason. That "air" is actually there to protect your potato chips. It's Not Air—It's Nitrogen The gas inside most potato chip bags isn't ordinary air. It's nitrogen . Regular air contains about 21% oxygen , and oxygen reacts with the natural oils in potato chips. Over time, this process causes the chips to lose their crisp texture and develop a stale flavor. Nitrogen, on the other hand, is an extremely stable gas. It doesn't react with the chips, helping preserve their freshness, crunch, and flavor much longer. Nitrogen Works Like an Airbag Nitrogen has another important job. It protects the chips during transportation. Potato chips are i...