“…Objective measurements can include testing of contact surface, employee hand, packaging material, ambient air, and water. Total aerobic count and Enterobacteriaceae are common indicators for the three objective measurements in addition to Staphylococcus aureus for employee hand testing and yeast and molds for food packaging material [ 4 , 5 , [13] , [14] , [15] , [16] , [17] ]. Studies in the literature showed that PRPs evaluation were mainly carried out in catering and food production [ 13 , [18] , [19] , [20] , [21] , [22] , [23] , [24] ].…”