Answer the following question:
A cook uses the same cooking oil repeatedly for frying. After several uses, the oil develops an unpleasant smell and taste. Describe the chemical changes involved and suggest methods to prevent this issue.
The of oils and fats present in food material resulting in bad smell and taste is called rancidity. Food cooked with fats and oils kept for a long time spoils and becomes unfit for eating due to .
We can add antioxidants to foods containing fats and oils to prevent rancidity. Rancidity can also be avoided by using to flush fat and oil-containing foods before sealing.