"Church key" nghĩa là gì?

Photo by Brett Jordan

"Church key" = chìa khóa nhà thờ -> nghĩa là dụng cụ để mở nắp chai thủy tinh và làm thủng nắp lon, cái khui nắp chai.

Ví dụ 
I was at my grandmother's house many years ago when she asked me to hand her the church key from the drawer beside the sink.

Q: Why are some bottle/can openers called “church keys”?
A: I’m sure some would describe their beer as the nectar of the gods, so a church key opener became critical to worshiping their favorite brewski. And while this explanation may not be accurate, it certainly hints at the two most popular proposed origins for this seemingly odd nickname.

While opening a can of beer these days is as simple as flipping a tab, original flat top beer cans required a device called a "church key" in order to access the brew inside. And printed on the can itself were instructions on how to open. Using the church key, an imbiber would puncture a triangular hole at the top of the beer from which he/she would drink, in addition to puncturing a smaller hole on the opposite side to let air into the can and facilitate the free flow of beer. Cone tops, on the other hand, could be opened with the same tool used for glass bottles.


Ka Tina

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