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What is the correct order of sieve, magnet and metal detector?

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fouziak

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Posted 05 December 2023 - 04:35 PM

Hello,

we are starting a new project of bulk loading and we would like to put sieve, metal detector and magnets

 

What's the correct order of those barrier to have the best protection?

Magnets, then sieve and after metal detector?

 

or we have to put sieve firstly and then metal detector+ magnets?

 

 

Thank you for your help



Madam A. D-tor

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Posted 05 December 2023 - 04:44 PM

Metal detector should be the final step.
And I would say the magnets first. This prevents damages of the sieves.


Kind Regards,

Madam A. D-tor

jfrey123

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Posted 05 December 2023 - 05:12 PM

Is this for dry goods or liquids?  Is the sieve intended to filter product to size, or merely a catch for FM?  I ask because I started my career in a spice/vegetable milling facility, and we used sifter boxes to achieve the ordered powder or granular sizing, so oversized product would get kicked out to rerun through the mill and too fine/small material would be separated to go into other product.  Because of that, we couldn't state the sifting process was applicable to FM, especially as it came in after milling.

 

Ideally, I'd say the magnet first, sieve and MD last if the hazard you're concerned with is metal FM.  If you're concerned about other FM as well in this bulk product, the sieve might become a CCP.



MOHAMMED ZAMEERUDDIN

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Posted 06 December 2023 - 05:02 AM

Magnet- Sieve - Metal Detector, is the correct order.



fouziak

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Posted 06 December 2023 - 10:11 AM

Is this for dry goods or liquids?  Is the sieve intended to filter product to size, or merely a catch for FM?  I ask because I started my career in a spice/vegetable milling facility, and we used sifter boxes to achieve the ordered powder or granular sizing, so oversized product would get kicked out to rerun through the mill and too fine/small material would be separated to go into other product.  Because of that, we couldn't state the sifting process was applicable to FM, especially as it came in after milling.

 

Ideally, I'd say the magnet first, sieve and MD last if the hazard you're concerned with is metal FM.  If you're concerned about other FM as well in this bulk product, the sieve might become a CCP.

Hello,

 

this is for dry goods (gluten)

the sieve is to remove all the FM with a size of 2 mm

we are concerned by differents types of hazards (plastic, insects, metallic particles...)

Sieve is a CCP and we put metal detector + magnets to be sure that we cover all risks

 

Thanks 



fouziak

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Posted 06 December 2023 - 10:11 AM

Magnet- Sieve - Metal Detector, is the correct order.

Hello

 

Why magnet before sieve?

our sieve is 2mm and will remove all the FM 

 

Thanks



jfrey123

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Posted 06 December 2023 - 05:25 PM

Hello,

 

this is for dry goods (gluten)

the sieve is to remove all the FM with a size of 2 mm

we are concerned by differents types of hazards (plastic, insects, metallic particles...)

Sieve is a CCP and we put metal detector + magnets to be sure that we cover all risks

 

Thanks 

 

I'd suggest making the sieve the last step in your flow if you've determined the sieve is the only CCP.  If MD kicks out metal after your CCP, you're documenting that the CCP was ineffective at removing the metal and that the sieve is ineffective.


Edited by jfrey123, 06 December 2023 - 05:25 PM.


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Madam A. D-tor

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Posted 07 December 2023 - 10:55 AM

I'd suggest making the sieve the last step in your flow if you've determined the sieve is the only CCP.  If MD kicks out metal after your CCP, you're documenting that the CCP was ineffective at removing the metal and that the sieve is ineffective.

Correct way of thinking.


Kind Regards,

Madam A. D-tor



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