Where to buy
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GFA Evaluation
Traditional shoyu brewed by Yamaki Jozo, Saitama Prefecture, Japan. Aged minimum 2 years in 150-year-old cedar vats. USDA Organic. Equal proportions organic whole soybeans and organic wheat — the classic shoyu ratio.
USDA Organic certified. Named Japanese brewery (Yamaki Jozo). Cedar vat aging method disclosed. Ingredients: organic whole soybeans, organic wheat, water, sea salt. No additives, artificial colour, or preservatives.
Eden Foods (Clinton, Michigan) maintains a long-term sourcing relationship with Yamaki Jozo brewery. No third-party Fairtrade certification.
Cedar vat (kioke) fermentation is a documented and increasingly rare traditional Japanese method. The 2-year fermentation period is substantiated by Yamaki Jozo's stated production process. No artificial colour (standard shoyu often uses caramel) is verified by the ingredient declaration.