Table 6.
The microbial analysis of tested cold brew coffee.
| No. | Tested Parameter | Unit | Research Methodology PN-ISO/PN-EN ISO |
Variant | Result |
|---|---|---|---|---|---|
| 1 | Molds | CFU/mL | PN-ISO 21527-1:2009 | CB2 | <1.0 × 100 |
| CB3 | |||||
| CB4 | |||||
| CB5 | |||||
| 2 | Yeasts | CFU/mL | PN-ISO 21527-1:2009 | CB2 | <1.0 × 100 |
| CB3 | |||||
| CB4 | |||||
| CB5 | |||||
| 3 | Salomonella spp. | in 25 mL | PN-EN ISO 6579-1:2017-04 PN-EN ISO 6579-1:2017-04/A1:2020-09 |
CB2 | Not detected |
| CB3 | |||||
| CB4 | |||||
| CB5 | |||||
| 4 | Number of coagulase-positive Staphylococus aureus | CFU/mL | PN-EN ISO 6888-2:2022-03 | CB2 | <1.0 × 100 |
| CB3 | |||||
| CB4 | |||||
| CB5 | |||||
| 5 | Presence of coli form bacteria |
in 0.1 mL | PN-ISO 4831:2007 | CB2 | Not detected |
| CB3 | |||||
| CB4 | |||||
| CB5 | |||||
| 6 | Total microbial count | CFU/mL | PN-EN ISO 4833-1:2013-12 PN-EN ISO 4833-1:2013-12/Ap1:2016-11 |
CB2 | <1.0 × 100 |
| CB3 | |||||
| CB4 | |||||
| CB5 | |||||
| 7 | Number of Listeria monocytogenes |
CFU/mL | PN-EN ISP11290-2:2017-07 | CB2 | <1.0 × 100 |
| CB3 | |||||
| CB4 | |||||
| CB5 |