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. 2018 Oct 30;8:16030. doi: 10.1038/s41598-018-34392-w

Table 3.

Cold Brew Coffee Samples: concentration of 5-CQA, 4-CQA, 3-CQA, and total CQA concentration (milligrams per liter of brewed coffee) of cold brew coffee samples (Mean ± 95% Confidence Interval, n = 8).

5-CQA
(mg/L)
4-CQA
(mg/L)
3-CQA
(mg/L)
Total CQA
(mg/L)
Brazilian 1124 ± 63 564 ± 23 513 ± 19 2201 ± 53
Ethiopian - Ardi 1133 ± 36 552 ± 14 464 ± 10 2149 ± 30
Ethiopian - Yirgz 1031 ± 127 480 ± 46 384 ± 34 1895 ± 104
Myanmar 912 ± 126 429 ± 28 355 ± 20 1697 ± 94
Columbia 1018 ± 157 488 ± 51 406 ± 41 1912 ± 127
Mexico 857 ± 138 416 ± 44 344 ± 35 1616 ± 111