monocytogenes in frozen meat products was higher than fresh raw meat, support these results. McClain and Lee (1988); Casolari et al. (1994) reported also higher incidences of L. monocytogenes in minced meat. Although chopping board, mincing machine and cleaning cloths are not primarily meant to be the host of L. monocytogenes but these are important contaminating steps in the chicken processing chain.