This invention relates to a system for and method of processing a food product (101), the method comprising applying steam of a gas (103) from a steam generator (102; 100) to at least a part of a food product (101) for a predetermined period of time thereby cleaning and/or disinfecting at least a part of the food product (101), the food product (101) having an inner surface area (101') and an outer surface area (101"), wherein the applied steam of a gas (103) is applied to at least a part of the outer (101") and/or inner surface area (101') of the food product (101) with no direct contact between the steam generator (102; 100) and the food product (101), and a velocity of said streaming gas (103) at said outer and/or inner surface area (101') of the food product (101) is at least about 8 meter pr. second and at most about 100 meter pr. second. In this way, efficient cleaning and/or disinfection of a food product is enabled by applying steam to the outer and/or inner surface area of the food product. The use of steam as a means for cleaning and/or disinfection enables a very efficient cleaning and/or disinfection but also gives an easy and efficient way of reaching many or even substantially all parts of the outer and/or inner surface area regardless of curvature, folds, shape, etc. The steam may also have a velocity that allows for kinetic cleaning of the outer and/or inner surface (101'). In this way, unwanted carcass contamination remnants or other unwanted matter or particles on the outer and/or inner surface areas are efficiently removed.