For a wine producer this is unacceptable and immensely frustrating, as it has nothing to do with the quality of the grapes or the winemaking process. It is the expensive, third party product that has ruined the months of hard work that goes into producing a wine. What is worse is that many consumers don't recognise the cork fault and in most cases conclude that they just don't like the wine. You can understand therefore why most of the Sainte Rose range is under screw cap!
In addition to the problem of TCA we have also noticed that under natural cork wines can age prematurely, creating variation within a given lot that has been bottled and sealed at the same time. This occurs because each cork has its own natural density and therefore strength of seal against the glass. Each cork therefore allows different levels of oxygen to enter the bottle, which in turn helps or hinders the aging process.
The debate is not yet over as new technology and research undertaken by the natural cork producers continues to reduce the prevalence of TCA in the bark. This is encouraging but cork is still not even close to being 100% assured. There are also other closures being developed, too many and varied to go into here and not readily available on the market. So we have concluded that while it may not end up being the final solution, screwcaps are undeniably the best closure of the moment.