Therefore, pretreatment of soy flour reduced the beany flavour and increased the savoury flavour. A slimy aftertaste was reported in the HPMC-fortified RS bread; RSH (7.25) and other samples (1.12–1.62). This aftertaste may be improved in future research of HPMC-fortified bread. The panel found the same order of hardness as the instrumental hardness values; however, GS bread (3.25) scored lower than the reference, commercial white bread (hardness score: 4).