The convective dryer described in the previous section was also used to conduct the Ambient Air Drying with same parameters of loading rate and air velocity. The samples were dried from the original moisture contents to 16.13 ± 0.12 % by one single pass without tempering with ambient air at temperature of 22 ± 1 °C and relative humidity of 43 ± 3 %. The drying process was stopped when the rice samples reached the final targeted weight (moisture).