At the mention of the word cork, most people first think about wine or champagne bottles. This natural, biodegradable material is obtained from the bark of a self-renewing tree. Cork is waterproof material obtained from the bark of cork oak tissues whose Latin name is Quercus suber.
The average tree can yield about 25 kilogrammes of cork. Removing the bark does not harm the tree. Due to the properties that do not leak gas and water, cork is a good protection against evaporation, and the resilience and strength of its cells also protects against mechanical injury. Two-thirds of the contemporary world production of cork give large plantations of this tree in Spain and Portugal.
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