Chromogenic culture media are a special class of media used in microbiology to identify microorganisms based on the colour of the colonies they form. The colour comes from substances in the media that interact with specific metabolic pathways in the microorganism(s) to be identified. CompactDry is a ready-to-use method that reduces microbial analysis time and improves quality control processes. CompactDry® are dehydrated, selective and chromogenic media for total counts and/or the identification of microbial species. It has applications in the control of raw materials, foods, beverages, cosmetics and in environmental air and/or surface monitoring.