UPDATE: MORE INFO ON CORKS/CLOSURES
In the May 31, 2006 issue of “Wine Spectator,” there is a letter to the editor from Elisa Pedro of the Portuguese Cork Association. In the letter, she defends the quality and popularity of corks. She points out that screw caps are much more susceptible to loss of seal than corks are. Also, while they may prevent TCA, they can’t prevent “winery-related anisole contamination or sulfur-like odors.” She also points out most top quality wines still use natural corks and that in a Wine Spectator poll, 81% preferred cork closures.
In the same May 31 issue, there is story by Daniel Sogg about French winery from the Loire Valley that has switched to screw caps. However, he also reports a Napa Valley and an Oregon winery have begun using a glass stopper similar to a decanter top. It is called Vino-Seal. It is being used on bottles that cost $75 and $100. Sorry, but I won’t be checking it out on those wines! If it is successful, I suppose it will eventually be used on less expensive wines.
The April 19, 2006 issue of the San Jose Mercury-News has an article by Laurie Daniel that mentions the use of the Vino-Seal closure by the Napa Valley winery. The article says that this is the second generation of the devise. It says that the first generation is used by about 350 wineries in Europe and is known as Vino-Lok. She says that the first generation is covered by a twist-off aluminum cap. The newer version comes covered with a traditional foil capsule. The stopper is easily pulled out of the bottle. The stopper is made with a gasket and must be used on a specially-made bottle. She tested it for leakage after resealing by filling the bottle with water and placing it on its side as you might place an opened bottle in a refrigerator. It did not leak. She then shook it upside down and it still did not leak. Thus, in addition to avoiding cork taint, a bottle with Vino-Seal can be placed on its side without fear of dripping. More on this story as it develops.
In the same May 31 issue, there is story by Daniel Sogg about French winery from the Loire Valley that has switched to screw caps. However, he also reports a Napa Valley and an Oregon winery have begun using a glass stopper similar to a decanter top. It is called Vino-Seal. It is being used on bottles that cost $75 and $100. Sorry, but I won’t be checking it out on those wines! If it is successful, I suppose it will eventually be used on less expensive wines.
The April 19, 2006 issue of the San Jose Mercury-News has an article by Laurie Daniel that mentions the use of the Vino-Seal closure by the Napa Valley winery. The article says that this is the second generation of the devise. It says that the first generation is used by about 350 wineries in Europe and is known as Vino-Lok. She says that the first generation is covered by a twist-off aluminum cap. The newer version comes covered with a traditional foil capsule. The stopper is easily pulled out of the bottle. The stopper is made with a gasket and must be used on a specially-made bottle. She tested it for leakage after resealing by filling the bottle with water and placing it on its side as you might place an opened bottle in a refrigerator. It did not leak. She then shook it upside down and it still did not leak. Thus, in addition to avoiding cork taint, a bottle with Vino-Seal can be placed on its side without fear of dripping. More on this story as it develops.