A solar cooker is like a hot box, in which we can cook our food without any cooking gas or kerosene, electricity, coal or wood. We do not need to spend even a single paisa on fuel. This cooker works with the solar energy, which is available free. In a solar cooker we can boil, bake and roast, and in a cooker for domestic use, we can cook food for four to five persons. Bigger size solar cookers are also available for cooking food upto 15 persons.

Insulating Box

A solar cooker consists of a well-insulated box for storing energy. To increase the absorption of solar radiation, the inside of the box is painted back.

Glass Lid

The insulated box has a glazing glass surface for collecting energy. The solar cooker absorbs the Sun’s radiant energy through this glass lid.

Reflector

The insulated box has a reflector, which is an ordinary mirror used to reflect sunlight into the box. This reflector helps to track the movement of the sun, focusing sunlight and therefore concentrating the heat energy inside the box.

Black Pots

Solar absorption is also increased by using dark-coloured pots for cooking. The vessels that are painted in black are placed inside the box with the food to be cooked.