A solar cooker is a device which uses the energy from sun to heat or cook the food. The solar cooker is also known as Solar oven. The principles used in solar cooker are concentrating sunlight, converting light to heat, trapping heat and greenhouse effect.
Concentrating sunlight: A polished glass or metal is used to concentrate the light and heat from the sun on cooking area, in order to increase the heating power.
Converting light to heat: A solar cooker contains low reflective surface in order to convert the sunlight into heat, which in turn improves effectiveness of the cooker.