Jump to content

  • Quick Navigation
Photo
- - - - -

Traditional Vs ATP Swabbing


  • You cannot start a new topic
  • Please log in to reply
3 replies to this topic

#1 sp13

sp13

    Grade - Active

  • IFSQN Associate
  • 20 posts
  • 0 thanks
0
Neutral

  • United Kingdom
    United Kingdom
  • Gender:Male

Posted 21 January 2013 - 12:12 PM

Hi all, long time no speak. I hope everyone is well :)

Just a quick question to gauge feedback regarding swabbing. As a small BRC Approved food manufacturer we conduct various Hygiene Assessments throughout our working week, detailed below:


- Daily Rapid Protein Swabs (Colour change type, post clean, pre production)
- Weekly Conventional Swabs (TVC& Entero from scheduled food contact areas, sent to lab)
- Weekly Listeria Swabs (From scheduled areas, sent to lab)


Ultimately, I believe the schedule is not very efficient and possibly out dated in its approach. I am hoping to improve the quality of testing and also reduce testing costs.

What I would like to know is: What are the implications of using an ATP Machine & swabs to replace the colour change swabs and reduce the frequency of the weekly TVC/Entero Swabs?

(Note - this is separate from any Allergen x-contamination testing)

Many thanks in advance for any feedback

SP13



#2 john123

john123

    Grade - MIFSQN

  • IFSQN Member
  • 103 posts
  • 31 thanks
6
Neutral

  • United States
    United States
  • Gender:Male

Posted 21 January 2013 - 07:44 PM

I can't see why switching from a protein swab to an ATP reader would be an issue. Protein swabs check for "protein residues", while an ATP reader is detecting "ATP", which is a chemical found in living cells. Seems to me the ATP might be able to detect more things.

We've been told that ATP testing alone can't replace micro testing, and we're currently performing micro testing after cleaning to help prove the effectiveness of our cleaning program (our company never had to do it before now). I'm curious what types of replies you'll get regarding the correlation of ATP to a micro test (hopefully I can piggy back some information from your thread haha)



#3 Charles.C

Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 17,484 posts
  • 4861 thanks
949
Excellent

  • Earth
    Earth
  • Gender:Male
  • Interests:SF
    TV
    Movies

Posted 21 January 2013 - 09:22 PM

Dear sp,

What are the implications of using an ATP Machine & swabs to replace the colour change swabs and reduce the frequency of the weekly TVC/Entero Swabs?


Unsure if first half sentence also linked to 2nd half ?
Unsure of meaning of implications ? eg With respect to what ?

If by "implications' you mean sensitivity for validating cleaning processes, the ATP-Protein method relative sensitivities can vary. This obviously may depend on yr own system (??).
eg Attached File  FDA 2007 Comparison ELISA, visual, sensitive ATP, total protein to detect presence allergenic food residues- EX-0170.pdf   95.11KB   93 downloads
(repeated from - http://www.ifsqn.com...dpost__p__56703 )

Based on literature and previous threads, AFAIK, the information derived from conventional ATP/Protein swabs may/may not be correlated to microbiological conditions, ie if interested to apply, it is necessary to do any required validation oneself for specific conditions in use.
BRC 4.11.2 does not specifically seem to require both non-micro/micro data for cleaning validation, but IMEX many customers will.

Assuming yr micro program schedule is "risk assessed", to answer yr micro frequency query will probably need to know something like -

1. what kinds of product/process are involved, i assume RTE (something) ?
2. typical number samples for micro/week (eg total 2 samples is not quite same as 6)
3. satisfactory relevant past history can be assumed ?

Rgds / Charles.C

Kind Regards,

 

Charles.C


Thanked by 1 Member:

#4 Tony-C

Tony-C

    Grade - FIFSQN

  • IFSQN Fellow
  • 3,362 posts
  • 993 thanks
263
Excellent

  • United Kingdom
    United Kingdom
  • Gender:Male
  • Location:Koh Samui
  • Interests:My main interests are sports particularly football, pool, scuba diving, skiing and ten pin bowling.

Posted 25 January 2013 - 01:41 PM

What I would like to know is: What are the implications of using an ATP Machine & swabs to replace the colour change swabs and reduce the frequency of the weekly TVC/Entero Swabs?
(Note - this is separate from any Allergen x-contamination testing)

SP13


It is something I would be looking to do, your ATP swabs should give a better indication of cleaning efficiency. I would maintain the weekly TVC/Entero at the same frequency for a period to verify using the ATP swabs is effective. Then review and reduce frequency based on findings.

Regards,

Tony





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users