Figure 9 shows the two first PC’s account for more that 99% of the variance in the data. The
samples of good coffee, such as, "healthy coffee", "Excelso UGQ" and "Excelso Europe", are located
on the right side of the figure. The coffee samples with coffee with defects are "repose coffee",
“fermented coffee" and "coffee with chemicals". These are located in the center. The completely
flawed coffee samples are skirting the coffee with defects in cup. The flawed coffee is related to the
coffee with defects in the cup. Each group was composed of four measurements, for a total
of 35 measures.