Oil and fat containing food items are flushed with nitrogen . why

1.	Oil and fat containing food items are flushed with nitrogen . why
Answer» Nitrogen gas prevent food from Rancidity If it not flushed then it get rancid and give bad smell and tasteSo it should flushed with nitrogen ?? To prevent the food items from rancidity and nitrogen is only the gas which is not reactive with food items. ? Because if they do not flushed they get oxidised and become rancid and give bad smell and taste To prevent them from rancidity.

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