Then spectral **data** at two wavelength points, (e.g. 1210 and 1630 nm) were recorded for all the 20 scans and the standard deviation (SD) and coefficient of variation(CV) for both reloaded and non-reloaded sets of ten scans for the civet coffee and the non-civet coffee were calculated. The standard deviation of the reloaded set is the spectral precision that will be achieved in the day to day work. The CV should be no higher than 4%. The SD and CV were also calculated for the reloaded set. This is the error of the instrument itself, because there should be no operator error. The SD and CV of the non-reloaded set of 10 scans should be much lower.