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Break Into a Good New Year

Break Into a Good New Year

Jan 8, 2026

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When Panasonic marked the opening of an EV battery plant in De Soto, Kansas, last year, the dignitaries on stage wielded mallets to break open the lid of a sake barrel. In doing so, they honored an ancient Japanese ritual known as Kagami Biraki.

The tradition signifies a new beginning in Japanese culture. Breaking a sake barrel is believed to open the door to happiness, unity, and prosperity, and wielding the mallet is considered an honor. Once the barrel is opened, celebrants ladle the sake into their cups for a round of toasts.

A companion version of the ceremony involves breaking (never cutting) and eating kagami mochi. These mirror-shaped rice cakes are also believed to bring good fortune. Mochi was once made at home, but today most people purchase it in stores. Typically, two mochi are stacked on a stand and placed near a Shinto or Buddhist altar as an offering to the deities.

The mochi are removed from the stands on January 11th and broken into pieces to be eaten, marking the end of New Year’s celebrations. Other Kagami Biraki ceremonies are held to commemorate major occasions such as weddings, business openings, and martial arts events.

The tradition dates back to the 17th century, when the Tokugawa shogun opened a sake barrel before battle and emerged victorious. The feudal system that took hold during this period ushered in 250 years of peace, stability, and economic growth.

Click on the button below to learn more about the tradition.

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