The book is essential for food manufacturers using HACCP procedures to ensure quality control. In particular, it offers practical information for production engineers and quality assurance personnel involved in minimizing the risk of foreign body contamination reaching the consumer. Recent developments in both technology and techniques are assessed and compared to more established methods in order to provide the most up-to-date and pragmatic advice for food manufacturers.The major sources of foreign body contamination are shown and the methods and machinery available to prevent food adulteration are analyzed. The capabilities and limitations of the machines used to remove foreign matter from food are considered in detail. It describes the detection methods available and how they are used in the food industry. In particular the capabilities and limitations of the machines used is dealt with in sufficient detail for them to be understood by technologists and scientists from disciplines other than engineering.