Hexanol is not a contributor to the green, beany flavor due to its much higher sensory detection threshold (2.5 ppm) than hexanal.20 However, it is a good indicator volatile. Hexanol is derived from 13-hydroperoxide of linoleic acid. Table 1 shows in raw soymilk, and ambient grinding gave significantly (p < 0.05) higher hexanol level than the other two grinding methods. After heating, in most cases, the hexanol level was reduced to below the detection limit.