The smell and taste of food containing fats and oils change after some time. Why does this happen? Name the process. List two ways which help to slow down the above-mentioned process.

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(N/A) The smell and taste of food containing fats and oils change because they get oxidized when exposed to air,leading to a condition known as $Rancidity$.
Process: $Rancidity$.
Two ways to slow down this process are:
$1$. Storing food in airtight containers to prevent contact with oxygen.
$2$. Flushing nitrogen gas into food packets (like chips) to replace oxygen and prevent oxidation.

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