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
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
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
Please stop referring to me as Sir/sirs
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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
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?
Please stop referring to me as Sir/sirs
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
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
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