| 1 | Knowledge of the importance and general objectives of drying. |
| 2 | Knowledge of the importance of water in foods, sorption isotherms and water activity. |
| 3 | Knowledge of the principles of heat and mass transfer that occurs during drying process. |
| 4 | Knowledge of the drying diagrams and psychrometric diagrams. |
| 5 | Knowledge of the systems and equipments in using drying process. |