Novel bottle stopper developed by Alcoa (Worms, Germany) Wine- and Liquor bottles, which is colloquially referred to as "glass cork". In 2008 the corporate division "Closure Systems and Packaging Machines" (beverage industry) was sold to the "New Zealand's Rank Group". The Vino-Lok activities are now running in this company's Closure Systems International division. Series production started in 2004. Product development was carried out by scientists and wine experts from the university of applied sciences Geisenheim and accompanied the state teaching and research institute Oppenheim-Rheinhessen with tests and studies. According to the manufacturer, Vino-Lok offers high product safety and neutral taste without the risks and weaknesses of one cork especially regarding the dreaded wine error corked, The closure is also fully recyclable.
The closure is not glass to glass (this would not result in a tight seal). The system consists of a closure and a closure cap (look that it is transparent or made of PVC, Aluminum or tin there). The sealing cap (1) ensures the safety of the system during storage and transport. The closure (2) is made of high quality glass and is resistant to mechanical damage. The sealing ring (3) consists of "Elvax by DuPont"; this plastic contains no plasticizers or allergens, The closure is (4) used manually or by means of a semi or fully automatic filling machine.
There are different sizes for bottle necks with 17.5 mm; 18.2 mm; 18.5 mm; 20.0 mm; 21.5mm and 23.0mm. According to the manufacturer, the closure leaves very little OTR values (Transfer rate of oxygen) too. As a result, the wines develop more slowly, which has a particularly positive effect on red wines. The bottles can be opened with just one click and easily closed again with a second click. This is clearly shown in the video (click). See also other alternative types of closures below closures,