Answers

2015-05-31T15:12:40+05:30
When oily and fatty foods are expose to the atmosphere after a some time they become dry and loose their crunchiness
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2015-05-31T15:15:05+05:30
When oily and fatty foods are exposed to atmospheric oxygen , their smell and taste changes that is they become rancid.The food gets oxidised they become soft and also thir crunchiness is not felt any more.
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