The Probert Encyclopaedia of General Information

CORK

Cork is the bark of a species of oak tree (Cork Oak) native to south Europe and north Africa. The bark is first stripped off when the tree is about 20 years old, and the process is repeated roughly every 9 years. The best cork is produced when the tree is about 40 years old, though the tree is productive for about 150 years. The main producer of cork is Portugal.
Research Cork