Via Kottke, an entrancing video of Kazuo Uyeda demonstrating his hard shake. From a New York Times article:
Mr. Uyeda, who owns a bar named Tender in the Ginza district, is the inventor of a much-debated shaking technique he calls the hard shake, a choreographed set of motions involving a ferocious snapping of the wrists while holding the shaker slanted and twisting it.
Eben Freeman, the figurehead of molecular mixology at Tailor, who is one of few non-Asian adherents of the practice, avows that the hard shake’s precision is akin to the Japanese tea ceremony, drawing on aesthetics and precision, and calibrated to a much more refined palate.
I could watch Uyeda shake cocktails all day. Oddly hypnotic.