Literature review/HACCP validation of metal detection

AdamSh1975

Registered
Good afternoon, I am wondering how other food manufacturers validate metal detection as a CCP. We have a HACCP where CCPs are annually validated in two ways - a practical/operational validation and a literature review whereby we seek to confirm the appropriateness of the test piece sizes we use to routinely challenge the metal detectors. Previously I have referred back to an FDA document (CPG Sec. 555.425 Foods, Adulteration Involving Hard or Sharp Foreign Objects) that suggests metal contaminants under 7mm in length do not pose a health risk to typical consumers, however this has always felt a little underwhelming.

Any suggestions?

Are there any other sources to refer to that give information on the health risks from different metal contaminants?
 
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