This is a fascinating look at the amount of ingenuity, specialty machines and labor required to make a traditional rice cooker out of stone. South-Korea-based manufactory Stone Lee starts with boulders at the quarry, then reveals every step required to produce these impossibly-refined objects:
Turn the subtitles on by hitting "C" on your keyboard. They not only explain what's going on, but are translated and kind of funny (e.g. "This video is not sponsored, against my wishes.")
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