Electrogustometry is the measurement of taste threshold by passing controlled anodal current through the tongue. When current passes through the tongue a unique and distinct metallic taste is perceived.Electrogustometry has been in existence since the 1950s. However, not much research has been done in this field.The TR-06(the electrogustometer used at our centre) is probably the one of the few electrogustometers used now for research and diagnosis.