It is made of a material called "cork". The texture and texture of cork are determined by the process of processing cork bark. It is close to nature and has stable performance. It has been verified that cork floors will not breed mold, let alone grow. worms, and will not cause any allergic reactions to the human body.

The 6,000-year-old cork oak from the Mediterranean coast is the raw material for cork stoppers and other cork products.

The cork made of this bark is soft and elastic, and will be in a swollen state after contacting the wine, which can well seal the wine bottle and block the intrusion of air;

At the same time, there are many tiny pores in the cork. Although they will disappear after being squeezed, these "disappearing pores" can enable the wine to maintain a moderate breathing during the long storage years. The foil cap of the mouth generally leaves 2 small holes the size of the eye of a pin.

Wine stoppers made of this bark have been used in red wine for thousands of years.

In addition, good red wine is made of cork as a cork, while low-priced red wine is glued with chopped wood in order to control the cost.