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Hygiene is a permanent concern for food industries since they must commercialize high quality products in order to comply with the legislation and the expectations of the consumers. The hygienic state of a surface is thus a critical parameter with respect to the performances of the production process and to the final quality of the product. For this reason, cleaning and disinfection are essential. However, the efficiency of the cleaning process will not only depend on the optimization of the process by itself and on the equipment design but also on the characteristics of the soiled surface i.e. mainly its roughness, surface chemical composition, and surface energy. The relation between these parameters and the cleanability are presented here, mainly for food applications. Some examples of existing easy-to-clean and self-cleaning surfaces based on the modification of these surface parameters are also presented.