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crown cork (GB)
stainless cap (GB)
kroonkurk (N)
capsule (F)
tappo corona (I)

Device for the airtight closure of beverage bottles. The name giving on the edge crown-shaped curved circular sheet metal piece has an insert made of press cork, or from the plastics used in the beverage industry for a long time polyethylene (PE), PVC or PVDC, A crown cork used to have 24 points, today there are 21 points in the world. By means of appropriate bottle neck shape, it is also possible to use a bottle cap as screw cap to be used so that it can be opened and closed again without a bottle opener. This becomes for example with French and American beer bottles used. Another special form are crown caps with pull tab (middle picture). The bottle cap was patented in 1892 by the American inventor William Painter (1838-1906). He called his creation "Crown Cork". Today, the term "stainless cap" (stainless cap) is used. Initially, the closure was only used in beer bottles in the United States and solved for the most part the old form of the ironing bottle quickly. Due to the great success Painter founded one year later the company "Crown Cork and Seal Company", which today is one of the largest manufacturers of bottle caps and other beverage items.

Bottle caps - Bottle caps with pull tab and bottle cap collection

During the bottle fermentation of a sparkling wine are the bottles usually closed with a bottle cap. The final closure by means of corks takes place only after the dégorgement (Removal of the yeast batch) or only after a possible addition of a shipping Dosage, In the 1980s, bottle caps were also used for the first time in wine bottles. This used to be the case in many countries quality wines not allowed, but is now increasingly practiced. Nevertheless, there are of course discussions about whether this wine is associated with a "loss of culture, if a bottle profanely" as a Coca Cola or a beer is opened ". The fact is that this is a very efficient and at Mineral water, Fruit juices and beers has long been tried and tested type of closure. Even with the conventional cork increasingly common problem of Korkschmeckers can be avoided. See also other alternative types of closure below closures such as corkscrew,

Image center: From User: StromBer , Public domain , Link
Picture right: From Skitof - Own work, CC BY-SA 4.0 , Link

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