At the same temperature, the drying rate of FIRD was higher than that of AD. In addition, the drying rate increased with the increase in the drying temperature for both FIRD and AD. The drying rates of FIRD were approxi- mately 38.6, 29.3 and 27.1% higher than those of AD at 60, 70 and 80C, respectively. The drying rate can be increased by increasing the temperature, but doing so may shorten the drying period of SCs. However, the high drying temperature may degrade the SC quality by burning the bumps on the surface or the edge of the SC. Generally, the shape of the bumps on the SC surface is an important factor for grading the dried SC commercially. Therefore, the drying tempera- ture should be optimized in consideration of both the SC drying rate and quality.