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最近,有人在网上提出,啤酒瓶盖上的锯齿不多不少,就21个,而且各种牌子的都一样。那么啤酒瓶盖的锯齿为什么是21个呢?记者首先到超市里进行了调查,看看是否所有的啤酒瓶盖都是21个锯齿,发现结果真是如此,不管是大瓶的还是小瓶的,盖子上的锯齿都是21个。不仅如此,一些饮料瓶上的锯齿状瓶盖锯齿也是21个。此外,也有一些啤酒瓶盖是设计成旋钮式的,还有像易拉罐拉拔式的。但不管怎么说,传统的皇冠形啤酒瓶盖确实都是21个锯齿,那其中的真实原因是什么呢?
Recently, some people put forward on the Internet, a small number of jagged beer bottle cap to 21, and a variety of brands are the same. Then why the beer bottle cap is 21? Reporter first went to the supermarket in the investigation, see if all the beer bottle caps are 21 jagged and found that the result is true, whether it is a large bottle or a small bottle, the lid There are 21 serrations. Not only that, the number of jagged caps on some beverage bottles is also about 21. In addition, there are some beer bottle cap is designed to be knob-type, there are like pull-style cans. But in any case, the traditional crown-shaped beer caps are indeed 21 serrated, then one of the real reason is that?