Abstract: A conveyor oven is disclosed comprising a cooking chamber, thermal heating source, conveyor means and top and bottom airflow within the cooking chamber wherein substantial uniformity of the cooking of food in the convection oven is achieved. Specifically, the apparatus and methods of the present invention provide for moving food through a first heated section with one particular heat and airflow, then through a second section with an air flow in the opposite direction wherein the oven can produce a very high volume of food that is evenly baked.