What is the stopper (soft) made of wine?
Quercus cork is the botanical name of a slow growing evergreen oak that grows only in certain western Mediterranean regions. The tree needs a lot of sunshine and a perfect combination of low rainfall and slightly higher humidity. Its bark quality and thickness vary according to the specific environmental conditions in which it grows.
However, corks had not become mainstream in those days. At that time, the most common used as cork Wine pot and wine jar is used wax or plaster, and the drop of oil olive Wine surface (to reduce the wine in contact with oxygen). In the middle ages, cork was clearly abandoned. When the painting described are twisting cloth or leather to plug the Wine pot or bottle, sometimes with wax to ensure tight seal.
Because the soft protective layer of bark and especially of fire insulation, oak was able to continue to grow. Many trees died because of the loss of the bark bark, because the whole tree sap, conveying the necessary energy. This soft oak has two layers of bark. The bark of the inner layer is vital, which is the basis for the growth of new bark every year. When the old bark barks at the foreign minister and dies, the new bark takes on the task of continuing to grow. The outer dead bark can be stripped away so that it does not hurt the trees, but be careful not to pierce the inner bark with vitality.
