| Drying temperature (˚C) | Sample A | Sample B | ||
| k | R2 | k | R2 | |
| 80 | 4.01873 × 10−3 | 0.9803 | 3.86391 × 10−3 | 0.9869 |
| 70 | 3.31316 × 10−3 | 0.9817 | 3.40642 × 10−3 | 0.9835 |
| 60 | 2.71764 × 10−3 | 0.9819 | 2.73915 × 10−3 | 0.9936 |
| 50 | 2.01856 × 10−3 | 0.9823 | 2.41998 × 10−3 | 0.9958 |