Natural Wine Cork Quality Grade Chart

Pictured below are seventy wine corks divided into seven different quality grades. Each quality grade is made up of ten corks with the top cork in each row being the best within that quality level down to the tenth cork being at the lower end of that quality level. It is necessary to show this quality span within each level because natural wine corks are exactly that --- Natural --- and therefore there are no two corks that can be exactly identical. Some years ago the renowned Cork Federation of France in consultation with the French Wine Institute designated these seven qualities as the international norm governing natural wine cork grades.