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Why potato chips packet are filled with nitrogen gas?

When fats and oils are oxidized, they become rancid and their smell and taste also changes.Thus,the oxidation of fats and oils can be easily observed by a change in their taste and smell. Oxidation of food can be prevented in many ways. Two common methods are discussed below.

1. Storing food in air tight containers. By doing so, the oxygen available for oxidation becomes limited. Hence, oxidation can be prevented.

2. Sometimes, antioxidants are added to food to prevent their oxidation. These antioxidants are oxidized first, which slows down the process of rancidity. These are reducing agents. Normally, vitamin C and vitamin E are added as antioxidants.

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The packet of the potato chips is filled with the nitrogen gas for preventing oxidation and hence to prevent rancidity.

As nitrogen gas is inert in nature so it does not itself react with the food items but prevent rancidity.

hope helps
 

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to prevent oxidation 
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By filling randicity in chips packet randicity can be prevented
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Rancidity can be prevented
 
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The potato chips packets are filled with nitrogen gas for preventing oxidation of food that changes the taste and smell of the food, called as rancidity. As nitrogen gas is an inert gas it prevents rancidity.

Hope it helps.

Thumbs up pls
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The main point here is that nitrogen is antioxidant Gas and thus to prevent rancidity of oily and fried foods we need this Gas to be filled and obviously if nitrogen is added oxidation will not occur as it will prevent rancidity... Hope you understood..
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Nitrogen prevents the fat present in food to get oxidized
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a bag of potato chips is filled with nitrogen because,if the bag were to be filled with oxygen or with some regular air it would ake the chips soggy
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