Posted 08 November 2017 - 02:44 PM
You will not find any specifics about heat sources in SQF.
On the other hand what you will note are things like fume-off, example: forklift trucks that use propane and have an exhaust issue or an oil based heater that fumes - the auditor could write that up as a potential (or as a) contaminate.
So your fuel for heating could be natural gas, electric, steam generated etc.
What I have seen in some of our client operations that are in same/similar food section is natural gas and electric as the source for the heating system and electric combined with a large solar array to off-set the greater expense for their area.
Hope that helps.
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