(1) Most Americans cook their food in an oven that requires wood, propane, or electricity in order to run. (2) Solar ovens only require the rays of the sun as an energy source. (3) There are over 60 different types of solar ovens. (4) Though most operate on the same basic principles. (5) Solar cooking is a process which concentrates sunlight on a reflective surface, converts light to heat, and traps heat inside a container. (6) After the food is prepared for cooking. (7) The oven is placed in direct sunlight, and it is left until the food is thoroughly cooked. (8) Cooking time varies according to type of solar oven, amount of sunlight, and the quantity of food. (9) Solar ovens are generally cheap to purchase and operate. (10) They provide a less fuel-intensive way to cook food. (11) However, these alternative ovens also have some disadvantages. (12) They take longer to heat food than a conventional oven, and they do not work very well on cloudy or rainy days.