Bitter Taste

Did you know... it used to be thought that the bitter taste is one of four taste receptors in the tongue, and that they are located toward the back of the tongue? We now know this is false as all parts of the tongue experience all kinds of taste. Bitter tastses are stimulated by a variety of chemical substances, most of which are organic compounds, although some inorganic salts of magnesium and calcium produce bitter sensations too.