Sanitizer....contaminated?

Bring that quats are very similar to "soap" in the chemistry, one can assume that this sort of contamination is not that far fetched. I would think that perhaps it became contaminated at your location from people putting unclean hands/tools into the container repeatedly

The chemicals are obviously not aseptic once opened.

alcohols have poor activity against bacterial spores (one ingredient in a quat)

So perhaps you need to surprise the sanitation crew one night to figure out the source of the contamination; Did the supplier test anyother containers from the same lot?

Hi Scampi, 

I don't think so, only a couple of test were performed. But during the following investigation, we'll ask to test other containers from the same lot.

Thanks, 

Bring that quats are very similar to "soap" in the chemistry, one can assume that this sort of contamination is not that far fetched. I would think that perhaps it became contaminated at your location from people putting unclean hands/tools into the container repeatedly

 

The chemicals are obviously not aseptic once opened.

 

alcohols have poor activity against bacterial spores (one ingredient in a quat)

 

So perhaps you need to surprise the sanitation crew one night to figure out the source of the contamination; Did the supplier test anyother containers from the same lot?

Is this being dispensed by a machine as well? Have you check as well the dispenser?