John M. Lindsay

Various microorganisms, including molds and bacterial spores, were tested on stainless-steel coupons and demonstrated 2–6 log reductions with one-minute wet-contact times.

The author reports results of evaluations and concludes that a disinfectant composed of a low-concentration suspension of silver ions is completely sporicidal with only a one-minute contact time.

The recovery of an occasional mold does not merit any particular concern. On the other hand, evidence of mold proliferation indicative of infection of facilities or equipment must be taken seriously and requires the prompt implementation of corrective and preventive actions.

Understanding how to identify, remediate, and prevent facility infection is crucial for product quality.