Abstract: A method of identifying bottled wine before it is labeled includes the steps of selecting a glue of a particular color and heating it to a fluid consistency. An amount of warm glue is placed on the bottom surface of the wine bottle and allowed to cool such that it adheres to the bottom surface to form an identifying mark. Prior to cooling, the glue may be stamped with an embossed seal to imprint it with various information such as the identity of the manufacturer and the vintage year. The color of the glue is selected to relate to and identify a particular type of wine.