An apparatus and method for detecting contaminants in a food product having an irregular shape is described. The apparatus comprises a contaminant detection device constructed and arranged to detect contaminants in a food product when the food product enters a zone of operation relative to the contaminant detection device. A conveyor belt is electrically coupled to the contaminant detector. The contour filler is operably connected to the conveyor bell and contaminant detector, and positions the food product within the zone of operation. The contour filler may retain the food product and fill the cross sectional area of the zone of operation to enhance contaminant detection. The contour filler may rotate the food product relative to the contaminant detector.