Re: Metal detector

From: GregoryScher@ln.amedd.army.mil
Date: Thu Jun 16 2005 - 12:10:40 PDT

  • Next message: Jon McGraw: "RE: Metal detector"

    In my humble opinion as an Auditor I would have a ton of questions about
    the validity of that process (hand held). I would not consider it a valid
    method to ensure metal above specified limits (FDA, Spec, ect) is kept out
    of product.

    Conventional methods pass the product through a calibrated, verified
    channel that has been set to a products specific density, temperature, and
    other characteristics. It is verified and human error for the most part is
    removed. With hand held it has no validity. If hand held metal detector
    was a plants control under HACCP for metal inclusion I would say that it
    will not ensure that metal does not get through. There are many ways to
    address metal inclusion without using metal detection at all e.g.
    inspecting blades at specified intervals. Bottom line is that hand helds
    will only give a false sense that a hazard is being addressed.

    Greg Scher, CQA

                                                                               
                 Pamela Tom
                 <pdtom@ucdavis.ed
                 u> To
                 Sent by: Marcelo Hidalgo
                 owner-seafood@ucd <marcelhi@yahoo.com>
                 avis.edu cc
                                           Seafood HACCP Discussion List
                                           <seafood@ucdavis.edu>
                 06/16/2005 09:58 Subject
                 AM Re: Metal detector
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               

    Hi Marcelo,

    Thank you for mentioning the U.S. Food and Drug Administration's
    "Fish and Fisheries Products Hazards & Controls Guidance." The third
    edition (June 2001) of the Hazards Guide states the following about metal
    fragment sizes:

    "FDA's Health Hazard Evaluation Board has supported regulatory action
    against product with metal fragments of 0.3" (7 mm) to 1.0" (25mm) in
    length. See FDA Compliance Policy Guide #555.425."

    Source: Chapter 20: Metal Inclusion (A Physical Hazard)
    http://www.cfsan.fda.gov/~comm/haccp4t.html

    The table of contents for the Hazards Guide is at:
    http://www.cfsan.fda.gov/~comm/haccp4.html

    Some companies may have operating limits that are more stringent than the
    regulatory action level or critical limits in their HACCP plan.

    My original question focuses on comments regarding the use of hand-held
    metal detectors. One person wrote to me and mentioned that you need to
    verify that they will work and that a lot of human error is involved. Are
    there any other thoughts on hand-helds?

    Pamela Tom
    University of California
    Sea Grant Extension Program

    On Thu, 16 Jun 2005, Marcelo Hidalgo wrote:

    > He all
    >
    > About your question, the metal detector is used in all
    > factory in Ecuador, Colombia y Peru in precooked Tuna
    > loims, it is very important to assure that your
    > product is free of metal littlepieces ( 0.001mm)
    >
    > Is a requiare of FDA, in if you want to export for
    > there (USA), you need it. In other hand, with this you
    > save a lot claims for metal pieces.
    >
    > Could you review the Seafood and Fisheries Guide in
    > the metal detector part.
    >
    > Marcelo Hidalgo
    > Quality Assurance Inspector
    > TRIMARINE-SOUTH AMERICA



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