A solar cooker is a device that uses solar thermal technology to convert sunlight into heat energy for cooking. It works by concentrating sunlight onto a receiver, typically a dark-colored cooking pot or pan, which efficiently absorbs the solar radiation. This process is known as absorption. It involves the transformation of light energy into heat energy as the sunlight interacts with the surface of the receiver. The concentrated light is often intensified using reflective materials to maximize the amount of solar energy directed at the cooking vessel. As a result, the receiver heats up, allowing food to cook without the need for gas, electricity, or other traditional fuels. This simple yet effective method of harnessing solar power makes solar cookers a clean, sustainable, and accessible solution for cooking, especially in sunny, off-grid areas.