One kind to the method for food sterilization and one kind on production line (201) for being used to handle the production line (100) of food (103), include: that area (101) and the second processing encirclement area (102) and conveyer system (103) are surrounded in the first processing, is configured to move food products through the first processing encirclement area (101) and be advanced through the second processing to surround area (102). First processing surrounds area (101) and is connected to gas supply system (113), passes through aperture (113 114) delivering gas temperature is higher than the air-flow under 70 degrees Celsius to generate the first processing atmosphere in the first processing encirclement area (101), and at least part of food surface is exposed to greater than about 60 degrees Celsius of the first processing temperature (Ts) while being advanced through the first processing and surrounding area. Second processing surrounds area (102) and is configured with atomizer (106 107), with being sprayed to the supply for the antimicrobial chemical agent (123) of food (103) delivering for being advanced through the second processing encirclement area.
