In one aspect, a spiral cooking device includes a first cooking zone with air configured to move horizontally therethrough in a first direction, a second cooking zone with air configured to move horizontally therethrough in a second direction different than the first direction, and a spiral conveyor belt at least partially positioned in the first and second cooking zones and configured to transport food product thereon through the first and second cooking zones. In one aspect, a spiral cooking device includes a spiral conveyor belt providing a central opening inside the belt and a conveyor belt drive member positioned externally of the central opening. In one aspect, a conveyor belt cleaning device is provided. In one aspect, a cooking device includes a frame including a plurality of coupled pipes for providing structural support to the device and at least one of the pipes is configured to have liquid pass therethrough.