Therefore, the studies which have been used only GC/flame ionization detection (FID) and mass spectrometry (MS) so far had limitations for the identification of odor-active compounds and their sources. Recently, thermal desorption–cryofocusing–GC/FID/olfactometry which combines two detectors, olfactometry and flame ionization detector simultaneously, has been effectively applied to the management of odor-active compounds [12] For example, the most abundant compounds in a chromatogram may not be the most important odorant [10]. Consequently, the impact of a compound on the odor of a sample must be evaluated using human assessors [11]. A valuable tool for identifying character-impact odorants is gas chromatography–olfactometry (GC–O), wherehuman“sniffers” are used to detect and evaluate volatile compounds as they elute from a GC column [8].