Fig. 2 – Weight gain on rehydration (WGR) as a function of different drying method and time ( MW = 0 W, MW = 210 W, MW = 300 W, MW = 560 W); solid lines indicate predictive plots for non-linear regression of Eq. (15) on instant ricede hydration data (a). Residual (b) and quantile–quantile (c) plots for nonlinear regression of Eq. (15) on instant ricede hydration data.