Microbiological quality guideline category | Guideline limits | % microbiological quality along the DVC | ||
---|---|---|---|---|
Farms | Distributers | Retailers | ||
cfu ml−1 | n = 50 | n = 50 | n = 50 | |
E. coli | ||||
 SA |  < 20 | 72 | 64 | 56 |
 BL | 20—≤ 102 | 0 | 0 | 0 |
 US |  > 102 | 28 | 36 | 44 |
Salmonella | ||||
 SA | n.d. in 25 ml | 86 | 78 | 76 |
 BL | N/A | - | - | - |
 US | d. in 25 ml | 14 | 22 | 24 |
S. aureus | ||||
 SA |  < 20 | 68 | 64 | 52 |
 BL | 20—≤ 104 | 18 | 6 | 0 |
 US |  > 104 | 14 | 30 | 48 |
L. monocytogenes | ||||
 SA |  < 10 | 98 | 94 | 92 |
 BL | 10—≤ 102 | 0 | 0 | 0 |
 US |  > 102 | 2 | 6 | 8 |
Campylobacter | ||||
 SA | n.d. in 25 ml | 100 | 96 | 100 |
 BL | N/A | - | - | - |
 US | d. in 25 ml | 0 | 4 | 0 |