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glass corks

glass stopper (GB)

Glasverschluss Glass stoppers were already used in the 17th century for the closure of wine bottles. They had to be specially ground for specific bottles and tied to the bottle. They were in use until the 19th century, but too expensive for widespread use. at decanters (especially distillates) or Decanters they are still used today.

The German engineer Rudolf Gantenbrink (who caused a sensation in connection with a small robot in the pyramid of Cheops) developed a "glass cork" that is firmly welded to the wine bottle. The opening takes place at a predetermined breaking point. Starting in 2002, it was used to carry out test trials on the Château Ausone (St. Emilion). In the meantime, however, the project was discontinued because hairline cracks formed at the break point, causing the seal to leak. After that, there were very successful products from other companies. One of the best-known glass closures is the brand Vinolok (in the USA Vino-Seal). See also other alternative types of closure below closures,

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