TABLE 3.

Effects of initial contamination (at packaging) on probability of L. monocytogenes level exceeding the safety criterion (100 cells/ml) in pasteurized milk at time of consumption

Initial contamination (at packaging stage)Meana (SD) probability of exceeding safety criterion at time of consumption
No. of cells/1-liter cartonLog CFU/ml
1−30.0014 (0.0003)
5−2.30.0032 (0.0005)
10−20.0045 (0.0006)
50−1.30.0104 (0.0009)
100−10.0147 (0.0012)
500−0.30.0339 (0.0017)
1,00000.0486 (0.0021)
  • a Means of 50 simulations with 10,000 iterations each.