A biofilm is made up of bacteria that have the ability to adhere to and multiply on surfaces and parts of equipment. Once they are well fixed there, they secrete substances or gums which allow them to adhere better.
The bacteria contained in the biofilm can break away and be a constant source of contamination for food. The biofilm can also harbor pathogenic bacteria, such as Listeria monocytogenes, E. coli or Salmonella, and cause foodborne illnesses.
Once established, the biofilm provides bacteria with a favorable environment for their survival. It is then difficult to dislodge it. Additionally, it reduces the effectiveness of cleaning and sanitation.
It is necessary to assess the level of risk of micro-bacteriological contamination, select the right products, their dosage and the frequency of their use in order to establish the best cleaning plan while respecting hygiene and food safety standards. . (MAPAQ, HACCP).