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Bottled beer is sold with several types of bottle cap, but most often with crown corks. Some beers (for example Grolsch) are sold in "beugel" style bottles, known as "swing top" in some English speaking countries and as "lightning stoppers" in Australia, presumably because they could be opened and closed easily. These bottles were superseded by the crown cork at the end of the 19th century, but survive in premium markets as nostalgic items.
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