Sampling from surfaces is possible thanks to the frictional force generated by the mechanical friction action. Using an appropriate tool, simply rub the surface to recover microorganisms. The collected specimens can then be detected using various techniques or devices.
The porosity of the surface as well as the area to be analyzed determine the appropriate sampling tool or method for sampling. For example, wipes and sponges are recommended for large areas (>100 cm2).
The condition of the surface to be analyzed can also cause the sampling results to vary. There are several methods and products to improve sample collection and reduce variability due to environmental factors. For example, wetting agents, such as sterile water or sterile transport media, can be used to moisten surfaces during sampling.
