The Menches brothers were selling pork sandwiches at a fair in 1885, but when there was no more pork, they used minced beef and gave it a new name, the "hamburger".

1885年，门彻斯兄弟在集市上卖猪肉三明治，但当没有猪肉时，他们用了碎牛肉并给它起了一个新名字——“汉堡包”。

youdao

Who first put the beef between pieces of bread and called it a hamburger?

谁是第一个把牛肉放在面包片之间，并称之为汉堡包的人呢？

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It takes 869 gallons of water to produce a third of a pound of beef, about enough for a large hamburger.

而仅仅是制作一个大汉堡所需的三分之一磅牛肉，就需要消耗掉869加仑的水。

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Fair warning: There are purists who argue that anything other than a beef patty is not a hamburger.

NPR: Building a Better Burger

Rules govern how many hamburger patties to a pound of beef (10), how long to toast a bun (17 seconds) and how much sanitizer to use when cleaning the shake machine (1 packet for 2.5 gallons of water).

FORBES: You Want Data With That?