Sugar is an important food also commonly known as sucrose and has been originally produced in the Indian since ancient times. Is the world's most popular sweetener, in form a white crystalline substance, tastes sweet, a carbohydrate and 100pct soluble in water. Sugars may differ in colour, flavour, sweetness and crystal size. Each of these characteristics allows sugar to perform a variety of functions in food products, in addition to providing a sweet taste.