Type of microbe

Storage time/months

0

1

2

3

4

5

Recommended value***

**TBC (cfu/g)

6.9 × 103

ND

ND

ND

ND

ND

<105

Staphylococcus aurous

ND

ND

ND

4.5 × 102

1.2 × 103

5.9 × 103

<105

Spore formers

2.7 × 103

ND

7.0 × 102

8.5 × 102

5 × 10

9.5 × 102

<105

Coli-form

1.1 × 102

1.1 × 103

2.5 × 102

2.5 × 102

1.1 × 103

1.4 × 102

<103