Compared to coarse particles, millfeeds with finer particles exerted beneficial effect on the quality improvement of whole wheat raw noodles. L* value slightly decreased and PPO increased for WWFs as the millfeed particle sizes. finer WWF particles showed a brighter and smoother appearance after 24 h storage. Hardness, springiness and cohesiveness values of cooked noodles as determined by TPA all increased with the reduction of millfeed particle sizes.