Fortification with cowpea had no effect on the stickiness of Orbit ugali, while NS 5511 showed no particular trend i.e. the panelists did not detect the difference noted by the instrumental analysis, suggesting that the effect was insubstantial for human perception threshold. The fact that fortification resulted in decrease in stickiness of NS 5511 sorghum ugali which was not detected by the sensory panel was possibly because the tannins present cause puckering of the skin and a feeling of dryness (Prinz & Lucas, 2000), which probably masked the stickiness.