Influence of environmental sample pre-storage on counting results

The use of culture media in the form of settle and contact plates is a crucial part of aseptic manufacturing when it comes to environmental monitoring. Since the manufacturing process does not always allow for immediate transfer of samples to the incubator space, these samples may be pre-stored at interim conditions. This application note investigates the influence of different interim storage conditions on the growth of selected microorganisms and in situ surface samples on naturally contaminated surfaces.