Caurnie Handmade Lavendar SoapThis is a regular chance to see a working soaperie which dates from the 1920s. It also happens to be the oldest and last working soaperie operating the coldprocess method in the world. The Cold Process is known as the natural way of soap making. Retaining the Oils natural glycerine (or glycerol) to help make the soap cleanse in very gentle way, retaining your skins natural oil mantle more effectively.