We try to hammer a nail into a board using a popular Japanese summer treat

A few days ago we reported on a series of whimsical Twitter warnings issued by Imuraya, makers of the Adzuki Bar. The tweets all advise consumers of the famous frozen sweet bean snacks that “Adzuki Bars are seriously hard, so watch your teeth!”

But how hard are they really? Hard enough to, say, drive a nail through a piece of wood? Our reporter Usagi-chan decided to find out.

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