Jump to content

  • Quick Navigation
Photo
- - - - -

Control limits for environmental testing on product contact surfaces?

Enviromental Testing controls

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

#1 Linda Phillips

Linda Phillips

    Grade - Active

  • IFSQN Associate
  • 5 posts
  • 0 thanks
1
Neutral

  • United States
    United States

Posted 13 March 2019 - 02:56 PM

Good morning all,

Does anyone know where I can find control limits for environmental testing on product contact surfaces?

I need to see cfu control limits for the following:

-Enterobacteriaceae

-Yeast and Mold

-Salmonella

-Listeria

-E.coli



#2 Scampi

Scampi

    Fellow

  • IFSQN Fellow
  • 2,832 posts
  • 782 thanks
346
Excellent

  • Canada
    Canada
  • Gender:Not Telling

Posted 13 March 2019 - 03:23 PM

Salmonella, E coli and Listeria should be zero on product contact surfaces with deviation procedures to reclean and retest

 

 

http://microgenbiopr...9.05.08-_9_.pdf

 

I'd give you CFIA's sampling plan, but their website is down right now


Because we always have is never an appropriate response!


Thanked by 1 Member:

#3 Linda Phillips

Linda Phillips

    Grade - Active

  • IFSQN Associate
  • 5 posts
  • 0 thanks
1
Neutral

  • United States
    United States

Posted 13 March 2019 - 03:47 PM

Thanks ever so much for your quick response Scampi.

 

I am currently using a Hydrated-Sponge with 10 mL Neutralizing Buffer.  All of my tests have come back negative except YEAST AND MOLD which is running between 40 cfu's and 240 cfu's.

The specification that I'm using is asking for less than 50cfu's.  I'm  trying to locate some kind of a specified control limit stating that <50 cfu's is correct.measurement to use. 

I could not find that in the pdf you were kind enough to attach



#4 Scampi

Scampi

    Fellow

  • IFSQN Fellow
  • 2,832 posts
  • 782 thanks
346
Excellent

  • Canada
    Canada
  • Gender:Not Telling

Posted 13 March 2019 - 04:14 PM

SOmetimes the browser wont' let attachments open, you could try switching to a different one

 

molds are challenging because they float around so a wide variance is normal............are air filters part of the sanitation program?


Because we always have is never an appropriate response!


#5 Linda Phillips

Linda Phillips

    Grade - Active

  • IFSQN Associate
  • 5 posts
  • 0 thanks
1
Neutral

  • United States
    United States

Posted 13 March 2019 - 04:20 PM

Very good question...  I'm going to look into that and get back to you.

I do however sample compressed air every 6 months for yeast and mold and test results have always come back negative



#6 Charles.C

Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 17,625 posts
  • 4929 thanks
987
Excellent

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

Posted 14 March 2019 - 06:59 AM

Good morning all,

Does anyone know where I can find control limits for environmental testing on product contact surfaces?

I need to see cfu control limits for the following:

-Enterobacteriaceae

afaik there are none.

 

 

-Yeast and Mold

afaik there are none.

 

-Salmonella

invariably "not detectable"

 

-Listeria

probably relates to product/process, eg FDA/USDA. Note that Listeria is not a pathogen per se.

 

-E.coli

afaik there are none (assuming generic E.coli)

(or did you mean pathogenic E.coli  in which case invariably "not detected")

 

Hi Linda,

 

^^^^, unless otherwise stated, I assumed you were referring to USA official limits (eg FDA/USDA) for any food / process

 

For some ideas, see -

 

http://www.ifsqn.com...ces/#entry60958

 

And many other threads on this forum

 

PS - for air see -

 

http://www.ifsqn.com...ent/#entry81054

(et al)

 

PPS - note that the numbers are meaningless unless referenced to a specific swabbed area or "item". Preferably, for example, as X cfu/cm2


Kind Regards,

 

Charles.C





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users