The reliability of control systems should align with foreign object risk, and redundant controls should be implemented for high-risk hazards to increase the overall reliability
Foreign object (FO) control in the food industry requires more than just putting a metal detector at the end of the line. Comprehensive analyses of FO hazard pairs from ingredients, processes, and environments are required to avoid gaps in FO preventive controls that can cause injury, adulterated product, disruptions to the supply chain, damage to equipment, and damage to the company brand. Injuries to the mouth, throat, and/or digestive tract can occur when a person consumes a product containing a sharp FO. Traumatic tooth fractures occur when an unsuspecting consumer bites down on a hard FO. Plastic or rubber FO can cause choking, depending on the size, the product type, and the end user.