The best convection toaster ovens are rated based on their efficiency of heat and energy distribution and ability to bake, roast, broil, reheat and toast food evenly. Ease of use and operation, space occupied in cubic feet, appearance and durability are also important criteria.
Convection toaster ovens contain quartz heating elements that radiate heat and an interior circulating fan that distributes the heat evenly. This prevents the formation of hold or cold spots and cooks food faster and more efficiently than regular toaster ovens. Because convection toasters operate at a lower temperature than regular toaster ovens, they retain more nutrients.