By Emily McAuliffe Business reporter, Lisbon
Cork is harvested from a type of oak tree, with Portugal the world’s largest producer
If you are a regular wine drinker it is almost certain that you have opened a corked bottle or two in your time.
As a result of a tainted cork, the wine smells and tastes unpleasant – all musky and mouldy.
After the initial disappointment, you then have the worry of trying to get your money back from the wine shop or supermarket…