The first premium wine trial of a natural cork closure in Europe has begun.

The trial of ProCork, a closure which claims to prevent cork taint in wine, started yesterday (26 March) in Bordeaux at Chateau La Dauphine.

The chateau has agreed to bottle 150 bottles each of its two wines under ProCork and store it for the next ten years.

"We will come back once a year to taste it," said Gregor Christie, inventor and CEO of ProCork.

Christie says his cork, which uses a system of fine layered membranes on each end of the cork, lets in the right amount of oxygen, but blocks the TCA molecule, the cause of cork taint.

ProCork was founded in Australia in 2002 and now sells 100m corks annually.