why do we fill chips packets with Nitrogen gas
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- Nitrogen is an inert gas, and is used during the packaging process to exclude and remove air and in particular, oxygen. Oxygen is highly-reactive, so this means it likes to combine with other molecules, which results in food spoiling or losing its' freshness.
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Potato chips bags are not full of air but of nitrogen gas. This is done to prevent the chips from oxidizing, which is part that makes them go stale.
Oxygen is very reactive and likes to combine with other molecules whenever it can, causing chemical changes to take place.Another reason is to prevent rancidity. Nitrogen prevents the oxidation of the fats and oils.
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