The present invention relates to a Continuous Cooking System comprising of a feeding section, a cooking section, and a heating means, wherein there is provided a hallow jacket covering the cooking section for directing heat energy supplied by said heating means. The present invention provides a cooking system for continuous cooking of cereal grain, lentils and eatable with water, wherein heat is supplied to this mixture in such a way that the cooking occurs at desired rates and desired physico-chemical changes are brought about with simultaneous heat transfer, water absorption and as a result, swelling, giving different texture.