How traditional soy sauce is made through barrel-aging
It can take four years to make one batch of barrel-aged soy sauce. The natural fermentation process was the norm in Japan for centuries, but when industrialization swept the nation, almost all the country's wooden barrels were replaced with steel ones. Yasuo Yamamoto is on a mission to revive barrel-making and preserve the authentic version of Japan's staple seasoning.
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It can take four years to make one batch of barrel-aged soy sauce. The natural fermentation process was the norm in Japan for centuries, but when industrialization swept the nation, almost all the country's wooden barrels were replaced with steel ones. Yasuo Yamamoto is on a mission to revive barrel-making and preserve the authentic version of Japan's staple seasoning.