How cork — the same material used to seal wine bottles — could save the planet 06:02. Lisbon, Portugal — The sound of a cork popping out of the end of a bottle is known across the world.It ...

He said screwcaps account for 4.5 billion bottles and plastic stoppers seal 2 billion bottles. Cork appears still to be king, and Amorim expects it to do even better in the near future, as China ...

The tree-to-bottle harvesting is an elaborate process, and as such these corks are usually the most expensive closures for winemakers to use. Air is a wine's worst enemy.