What is meant by rancidity ? State any two methods to prevent it.

Explanation

Rancidity is the slow process where the oils and fats present in food are oxidized when exposed to oxygen, leading to foul smell and a bad taste.
Different methods used to prevent rancidity are :
(a) Adding chemical called antioxidants, which prevent or slow down the oxidation process.
(b) Storing foods in airtight containers or in a refrigerator.