The Solar Cooker works on the principle of black body heat absorption. It is like a hot box, in which we can cook our food without any cooking gas or kerosene, electricity, coal or wood. There is no fuel cost and it works with the solar energy. We can boil, bake and roast for four to five persons in a domestic box type cooker. Bigger size solar cookers are also available for cooking food up to 15 persons.