Figure 2 shows the particle size distribution data obtained from the sieving experiment. The Rosin–Rammler distribution model was fitted to the experimental data using the least-squares method, and the model derived values of c = 5.58 × 10−6 and n = 1.63 with a mean error of 2.05 × 10−2 for the mass cumulative probability of rice. In this crushing procedure, the maximum frequency of particle size was located at 927.9 μm.The drying simulation assumed a Rosin–Rammler distribution and was carried out using Eq. (7). In this simulation, it was assumed that the particle size was greater than 1190 μm. Because the residual percentage of crushed rice, of which the size was bigger than 1190 μm was 0.559, and the following equation was derived.