The most important effect of partial discharge is the corona dis-charge, which can lead not only to the production of ionic wind but also to the occurrence of vortex. As HVEF can be operated at room to moderate temperatures, the detrimental effects on the sensorial and nu-tritional attributes of food materials can be reduced. High voltage elec-trical discharge in gaseous media may also lead to some extent of microbial inactivation and ethylene oxidation due to formation of ozone and negative air ions (NAI) which could extend shelf life of fruits and vegetables. The most influential parameters in relation to their ef-fect on process rate and energy consumption are the voltage and the electrode gap. As the electrode gap decreased and voltage increased,the processing rate (drying or thawing rate) showed a significant in-crease. The electrode configuration (parallel plate/point to plate or wire to plate) plays also a significant role on the treatment. Point to plate or wire to plate configuration have a tendency to accelerate gener-ation of corona discharge which could potentially en hance the heat and mass transfer, while on the contrary parallel plate have a tendency to the formation of electrostatic field without electrical discharge. The electrode configuration is also effective on the food quality.