The wine bottles usually sell for about 50 cents per bottle, but fancier bottles can fetch near $5.00 each (hint: Cobalt blue bottles!). Wine corks, however, generally sell for about 10 cents each.

The truth is the cork oak tree is not endangered. And because wine vintners prefer screw caps for various reasons, that's actually led to a decrease in demand for cork wine stoppers.

Benefits of cork And it is used for many things, from the production of agglomerate for walls and floors to the manufacture of shoe insoles and even the lining of satellite capsules, but its main purpose is the sealing of bottles of alcoholic beverages -wines, spirits and cava- in the form of stoppers.

This ensures that the corks get enough moisture to lubricate their passage through the corker, but not so wet that the corks will crumble apart.