QUESTIONS,
ANSWERED

Barrel aging is where time becomes an ingredient. As soy sauce rests in wood, the fermentation continues to evolve, allowing layers of umami, aroma, sweetness, acidity, and salinity to become more integrated. The result is a flavor that feels deeper, rounder, and more complex than soy sauce produced on a faster timeline.

Wooden barrels also create a living environment for fermentation. Over time, the wood develops its own ecosystem of microorganisms, helping shape the character of each batch in a way that stainless steel cannot fully replicate.

It is slower, more labor-intensive, and far less efficient. That is exactly the point. Great soy sauce is not meant to be rushed.

Yes. Traditional soy sauce is a lesson in patience. DOJO is allowed to mature for up to two years before it is ready. There is no shortcut, no rushing the process, and no forcing it to fit a production calendar.

In a category built for speed, we chose to wait. You can taste the difference.

Not yet. Our first batch is not certified Kosher or Halal, but both certifications are part of our plans moving forward. We’re working toward having them in place as early as our next production run. Good soy sauce should be for everyone.

Slowly. Organic soybeans and wheat grown in Japan are steamed, roasted, and cultivated with koji, then mixed with sea salt and mountain spring water into a mash called moromi. The moromi matures in large cedar barrels for 24 months, through two winters, before it is pressed.

Speed. Most soy sauce in American cabinets is produced for scale: fermented briefly in large steel tanks, or made by breaking down soy protein with acid instead of fermenting it at all, then adjusted with color, sweeteners, preservatives, or extra salt so it tastes the same bottle after bottle.

The result is flat and salty. It covers food rather than deepening it. DOJO is brewed the traditional way from four ingredients, aged two winters in cedar, and tastes like it.

Control. A pour spout glugs and drips, and most people pour too much. The squeeze bottle lets you dress a bowl of rice, finish a steak, or fill a dipping dish with exactly the amount you mean to, and it stays clean on the counter.

Unopened, keep it in a cool, dark cupboard. Once opened, refrigerate it to hold the aroma and depth for as long as possible. It will not spoil on the counter, but naturally brewed soy sauce slowly loses its brightness with air and warmth, and DOJO has no preservatives to hide that.

Mountain spring water, organic soybeans, organic wheat, and sea salt. Certified organic in Japan and the U.S. Nothing else: no caramel color, no sweeteners, no preservatives, no flavor enhancers.

No. Traditional soy sauce is brewed with wheat, and so is DOJO. If you need a gluten-free soy sauce, look for a tamari.

In a small town in the Japanese mountains, at a fifth-generation family brewery founded in 1902. Mountain spring water runs straight to the brewery and makes up more than half of every batch.

Yes, please. Email konnichiwa@dojo.world for wholesale and restaurant inquiries, or use the contact page.