According to Diam, “The concept of Diam closures emerged from this idea: purifying cork through a natural process to eliminate the molecules that can affect a wine’s taste. The cork industry contributes considerably to maintaining our oak forests and to the economy of the cork-producing regions of the western Mediterranean and Europe’s southern Atlantic seaboard. Moreover, unlike alternative types of corks, our Diamant® system of cork purification uses very little energy. After many years of work, Diam Bouchage’s research and development teams have perfected a binding agent composed of 100% bio-based polyol, from a totally renewable source. Our stoppers will thus benefit from an innovative ingredient, exclusively of plant origin.”