how are corks made
This is a close-up of a piece of bark. It's quite thin, and won't be used to produce high-quality natural cork. But now there are also technical corks, made up of small pieces of cork fused together, which means that more of the cork bark is suitable for producing wine bottle closures.Before processing, the cork planks are put on pallets.ow cork is made An illustrated guide to the cork production process. It all starts in the forest. Cork oaks are harvested every nine years, once they reach maturity. It doesn't harm the tree, and the cork bark regrows.