Question

Spoilage is the process in which food deteriorates to the point in which it is not edible to humans or its quality of edibility becomes reduced

(i) Why does the food get spoiled ?

(ii) How the spoilage of food can be prevented ?

(iii) How chips are prevented from getting spoiled in packets for so many days

Answer 1

(i) When fats and oils are oxidised, they become rancid and their smell and taste changes.

(ii) To prevent spoilage of food, special types of substances called antioxidants are added to fatty foods.

(iii) Chips are packed in packets flushed with nitrogen to prevent spoilage by oxidation.