I have some doubts about the FSSC 22000 scheme.
In the ISO/TS 22002-1 clause 10.2 microbiological cross-contamination shows the following:
"Areas where potential for microbiological cross-contamination exists (airborne or from traffic patterns) shall be identified and a segregation (zoning) plan implemented"
but this standard doesn't explain what kind of decision tree I should use. ¿could the BRC decision tree be used in this case?
For ready to eat products which are thermally treated after packaging, ¿would there be any possibility to have a high risk area if this product is already protected? I'm not sure if in a FSSC 22000 scheme there must be a filtered air system in case of identifying a high risk zone or is recommendable if there are other control measures.
I’m not a user of iso22000 so please consider this response as speculative.
As quoted, yr text is incomplete. The additional text in section 10 / iso22002-1 may also apply, eg regarding RTE product. (process unknown)
It seems to me that the likelihood of any airborne micro. contamination is evaluated/controlled via PRPs which respond to section 6.4, viz –
air, iso22002-1.png 279.56KB
Potential traffic-related contamination is presumably able to be assessed visually.
The requirements of the text in section 10 may IMO be more readily understood by this fssc/iso22002-1 checklist which has rather simpler English text –
fssc22000-(iso22002-1) Requirements and additional FSSC Requirements,2014.pdf 94.25KB
To answer yr specific question, I daresay any methodology to perform the hazard assessment can be used as long as it can be validated. I don’t think the BRC zoning tree is related to airborne/traffic contamination though.
Other users of fssc22000 may have more direct familiarity with the necessary responses (if any) to section 10. It surely may relate to yr product/process also.