We introduce physiological mechanisms and characteristics of electric taste for utilizing it in gustatory media. We usually apply chemical and multimodal scientific knowledge for developing gustatory media. In addition, recent studies utilize electric taste which occurred by electrical stimulus, to evoke a gustatory sensation. Engineering researches about electric taste is still groundbreaking years, in contrast, physiological researches has been studied over 250 years. Hence physiological knowledge reference which may utilize in engineering discipline supports designing and improving interactive gustatory media. First, we introduce the mechanism and the taste quality of electric taste. After introducing the history of electrogustometry and the electrogustometer, we describe an analysis of electric taste by neuroscience. Finally, we discuss the future vision of electric taste.