Patent ID: 9220276
Filing Date: 2015-12-29
Classification: A21B,F24C

Abstract:
1. A method of heating a food product being conveyed on a cook belt in a spiral oven having a forward/reversing fan with a plurality of fan blades, the forward/reversing fan arranged above and concentric to the cook belt, the method comprising the steps of: producing a first airflow in a first rotational direction, the first airflow flowing between an upper and lower portion of a cooking chamber of the spiral oven during a time “T producing a second airflow in a second rotational direction inverted to that of the first rotational direction, the second airflow flowing between the upper and lower portion of the cooking chamber during a time “T using a moving average temperature to account for temperature fluctuations of the cooking chamber at least until airflow re-stabilizes in the cooking chamber between the first rotational direction and the second rotational direction.