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Coliform Bacteria CFU and Non-Food Contact Environmental Sampling

Coiform Bacterai

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Montana Milling Inc

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Posted 26 March 2018 - 05:40 PM

Greetings!  I am looking for information on the actionable or permissible levels of Coliform CFU on non-food contact surfaces.  This is for a grain cleaning and flour/cracked grain production facility.  We do not have a pathogenic kill step and pass this on to the end user. 


Thank you for your help!



Benjamin Wild

Quality & Safety Manger, Montana Milling, Inc.


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Posted 28 March 2018 - 09:14 PM

There is no set limit. Clearly the closer you are able to maintain it to zero the less risk of possible customer illnesses. Based on all of the documents that I have read over the years, I would never exceed 100 CFUs for coliforms, but as testing is being done, I would gradually move my limit down to maintain the cleanliness and sanitation of my facility.


The Almond Board of California did a Pathogen Environmental Monitoring Program (PEM) that might be useful for you. You can look it up on the internet.


    Food Safety Consultant, Production Supervisor

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Posted 28 March 2018 - 10:12 PM

Charles C. has a collection of various guidelines here: http://www.ifsqn.com...ntact-surfaces/

Austin Bouck
Owner/Consultant at Fur, Farm, and Fork.
Consulting for companies needing effective, lean food safety systems and solutions.

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