The present invention relates to a thirst-quenching carbonated beverage with a strengthened or sustained carbonation feel peculiar to known carbonated beverages in which, after opening, the carbonation feel rapidly drops depending upon a combination of raw materials employed and upon evaporation of the carbon dioxide gas.The present invention also relates to a method which includes adding to a carbonated beverage an additive comprising spilanthol or a spilanthol-containing plant extract or plant essential oil as an active ingredient.
