The most important effect of partial discharge is the corona dis-charge, which can lead not only to the production of ionic wind butalso to the occurrence of vortex. As HVEF can be operated at room tomoderate 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 ofmicrobial inactivation and ethylene oxidation due to formation ofozone and negative air ions (NAI) which could extend shelf life of fruitsand vegetables. The most influential parameters in relation to their ef-fect on process rate and energy consumption are the voltage and theelectrode 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 orwire to plate) plays also a significant role on the treatment. Point toplate or wire to plate configuration have a tendency to accelerate gener-ation of corona discharge which could potentially en hance the heat andmass transfer, while on the contrary parallel plate have a tendency tothe formation of electrostatic field without electrical discharge. Theelectrode configuration is also effective on the food quality.