Convenience food are tertiary processed foods are foods which are designed to save consumers time in the kitchen, reduce costs due to spoilage, and reduce costs using economies ofscale. They were develop specifically to preserve the over supply of agricultural product available at the time of harvest in order to stabilize the food markets in developed countries. Convenience foods - the choice of the day can be designed to suit all segments of population including army, airways, railways and even patients with suitable supplements for their health. The demand for convenience foods is growing at a faster pace due to changes in social and economical patterns, as well as increase in urbanization, buying power and awareness about health foods, changes in meal pattern and existing food habit, desire to taste new products. The single most important development in the evolution of convenience foods happened in 18th century, when Nicholas Appert invented the process of canning. With the introduction of canning, consumers have a variety offoods such as fruits, vegetables, meat, fish and soups all year round and at reasonable prices. Canned foods played a significant role in feeding the army of Napoleonic war, World