Microbiological examination of the surfaces takes place after decontamination so as to confirm the absence of microorganisms. For this purpose, the ALIMENT LAB laboratory implements a variety of sampling techniques and testing methods depending on the isolated microorganisms. Total aerobic flora is the most appropriate indicator of the microbiological status of the surfaces (equipment and environment), cleaned and disinfected. The efficacy of the disinfection controlled as appropriate and specific microbiological analysis of surface samples, which include the count of microorganisms such as yeasts and fungi, Enterobacteriaceae, coliforms fecal origin and E. coli.