A COMPARATIVE-EVALUATION WITH RESPECT TO THE BACTERIAL CLEANABILITY OF A RANGE OF WALL AND FLOOR SURFACE MATERIALS USED IN THE FOOD-INDUSTRY

A range of floor and wall materials suitable for use in the food indus try were selected for comparative bacterial cleanability tests. A stan dard cleaning regime was carried out on samples after biofilm developm ent of Acinetobacter calcoaceticus (CRA 296). Cleanability was measure d as the log reduction in bacterial numbers. The results for the wall materials showed that there were no statistical differences, whilst th ose for the floor materials were more variable. The grouted joints and texture did not compromise the cleanabilities of tiled surfaces.