In this chronicle, Tim Atkin* provides a good explanation of the benefits of the screw-on capsule (which is used in some Paço de Teixeiró wines) versus the cork closure.
*Tim Atkin is a Master of Wine, wine correspondent for the "Observer", editor of the "Wine" magazine and joint-chairman of...

The international organization Superbrands, which promotes and gives awards to brands associated with excellence, recognised Paço de Teixeiró wines as one of the most prestigious national brands.