How does packed potato chips retain its taste and crunchiness for so long but lose both when kept in open for a short while?

Question

Yeah. That’s pretty much the question

In: 59

Answer 1

The nitrogen in chip packets- the ‘air’ that we shit on Lays for, preserves the chips because it doesn’t react with the chips. So thats why it does not lose crunchiness inside. Once its exposed to outer air, it reacts with the oxygen and loses its crunchiness.