“…in the fish industry (Miettinen, Aarnisalo, Salo, & Sjöberg, 2001), slaughterhouses and the meat industry (Suihko et al, 2002,;Gudbjörnsdóttir et al, 2004), the dairy industry, beweries (Ogden, 1993) and retail food premises (Christison, Lindsay, & von Holy, 2008;Tebbutt, 1991). Examination of surface cleanability in general has included different microbiological, biochemical, chemical, physical and visual methods (Kymäläinen, Kuisma, Määttä, & Sjöberg, 2009;Allende, Aguayo, & Artes, 2004), many of which have been developed in recent decades (e.g. Favero, McDade, Robertsen, Hoffman, & Edwards, 1968;Sveum, Moberg, Rude, & Frank, 1992;Griffiths, 1996).…”