“…Ž . Previous studies Schmidt-Lorenz et al, 1990 demonstrated that various isolates from bottled, non-carbonated, natural mineral water had an average optimum temperature of 268C. It is, however, recommended to use incubation at 308C since all the indicator pathogens investigated throughout this Ž EC-funded study Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, Staphylococ-.…”