Time (h) relative to pasteurization Standard Plate Count (cfu/ml) Incubation Temperature (°C) -1§ 6861 Farm NR 0£ 40 Farm 13 1 59 Indoor¥ 24 2 25 Indoor 24 3 23 Indoor 24 4 30 Indoor 23 5 38 Indoor 23 6 91 Indoor 23 7 6068 Indoor 23 8 7796 Indoor 23 24 2,121,818† Indoor 22 1 28 Outdoor 5 2 20 Outdoor 6 3 24 Outdoor 8 4 35 Outdoor 9 5 32 Outdoor 9 6 31 Outdoor 11 7 29 Outdoor 11 8 37 Outdoor 11 24 25 Outdoor 1 §-1 indicates immediately pre-pasteurization; raw milk on the farm £0 indicates immediately post-pasteurization NR=Not recorded ¥-Indoor incubation was at room temperature during Fall †-Median=206,364 cfu/ml

Table 3: Standard plate counts for bacteria in pasteurized milk samples over time post pasteurization by incubation method and hourly temperature for Fall season. Each value is the mean for 3 samples, one from each study farm.