How do you like your wine – with a cork or screw-cap?

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…