FOR more than one hundred years scientists have reported that direct and alternating electrical currents can kill or in- hibit the growth of bacteria and yeast [1], [2]. Repetitive high voltage pulses have been recommended for continuous steril- ization of liquid streams [3], [4]. However, researchers report that cells killed by pulsed electrical fields are not disintegrated, and bacterial spores, molds, and viruses are relatively insensi- tive to high voltage pulsing [