Australian Wine and Research Institute

Popping the Cork on the Screwcap Debate

Popping the Cork on the Screwcap Debate

Post by Chuck Hayward | August 7th, 2012

The debate over corks and wine is causing controversy once again, proving its unique ability to be an issue of contention for the foreseeable future. Much ballyhoo has been raised by the cork industry recently regarding Christian Canute, the owner of Rusden Winery in the Barossa Valley, and his decision  to forswear screwcaps in favor of corks (despite the fact that he only used screwcaps for one of the ten wines in his portfolio and even that was only for a few vintages).

Top: 1999 Clare Valley semillon, 28 months after bottling. Bottom: After 125 months

In other news, UC Davis and PlumpJack Winery recently announced the commencement of a two year study that will attempt to determine, once and for all, how different closures affect the ability of wines to age. (Read more about the study here). This research is taking place despite the fact that the Australian Wine and Research Institute (AWRI) has been involved in a similar project for more than a decade. That study, analyzing 14 different types of closures, is in the process of concluding that screwcaps are superior when compared to other types of seals. Looking at the picture above (courtesy of Old Bridge Cellars), I don’t think I would want any of the wines on the right side of the picture. And by the way, the screwcap bottles are on the left. (more…)