And you thought that buying locally and cooking at home was the way to be a good green citizen. But back in roughly the 18th century, the Japanese were all about eating out. OK, that might be a stretch, but according to Azby Brown and his new book, Just Enough, during the Edo period in Japan, many tenets of sustainability were developed, among them the idea that buying prepared food was more energy efficient. The thinking being that a restaurant would “use fuel more efficiently than [a] single household,” as SFGate notes in an interview with Brown.

So stop fretting over that tostada to-go that you’re jonesing for tonight. Instead fret over whether you should tip on takeout or not.

Image source: flickr member Mykl Roventine under Creative Commons

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