Microbial Grow Through

A very much debated topic with as speculation and guess work attached. A recent FDA trial work attempted to lift the shadow of doubt whether it not grow through occurs. The paper described a series of spike studies on flat filter discs and then the flat filter is put onto a nutrient solution. Organism grew through some of the filters. The study and paper were very interesting, however the doubt persists, as the study had two downfalls: performance with flat filter discs not being filter cartridge composites and the environment on the filters were static, not representing the dynamic flow conditions one finds in real filtration. Flow inhibits microbial growth. Unfortunately we need to continue the debate of grow through.