
YAMASAN KYOTO UJI Double Brewed Soy Sauce
A double-brewed soy sauce that uses naturally brewed Koikuchi soy sauce in place of salt and water for its second brewing. YAMASAN says it brews slowly for more than 1,000 days with no additives—a considerable commitment to something served by the small dish.
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At a glance
One-line verdict
A distinctive soy sauce for sushi and sashimi nights, with a second brewing that gives curious cooks a concrete reason to explore beyond their everyday bottle.
Best for
Sushi and sashimi enthusiasts, or curious home cooks who want to explore how soy sauce production differs beyond the label.
Skip it if
You need a wheat-free condiment; wheat is among the ingredients the manufacturer lists for its Koikuchi soy sauce.
The full picture
Soy sauce is easy to treat as a background ingredient until dinner consists largely of fish, rice and a small dipping dish. That is where YAMASAN KYOTO UJI Double Brewed Soy Sauce makes its strongest argument: choose it for a meal where the sauce has room to matter, rather than expecting its production story to transform everything it touches.
The defining detail is the second brewing. Instead of using salt and water, the process uses naturally brewed Koikuchi soy sauce. That is a meaningful distinction from an ordinary bottle, and a more useful reason to consider it than an impressive number on its own. The manufacturer also says the sauce is naturally and slowly brewed for more than 1,000 days. Your sushi dinner need not take quite as long.
That extended process is interesting, but it is not a tasting note. It does not, by itself, establish that this sauce will be smoother, sweeter or more appealing to you than the one you already like. The buying case rests on exploring a different brewing method, with sushi and sashimi—the manufacturer's recommended pairings—as a straightforward place to begin. A small dipping dish gives that choice a clearer purpose than a recipe in which soy sauce is one of fifteen ingredients.
YAMASAN also says the sauce contains no additives and that its soybeans and wheat are non-GMO. Those are useful distinctions for shoppers who specifically seek them, not automatic proof of better flavour. Wheat is also the firm boundary here: this is not a wheat-free alternative, regardless of how patiently it was brewed.
Our take is to consider it a table-focused addition rather than a compulsory replacement for your everyday cooking sauce. If sushi or sashimi is a regular pleasure, the double-brewed approach offers a specific, worthwhile avenue to explore. If you simply need soy sauce to do its usual job in a busy recipe, there is less reason to make fermentation the evening's main topic.
The Irresistible
- The second brewing uses naturally brewed Koikuchi soy sauce instead of salt and water, offering a distinct production approach for cooks interested in exploring soy sauce.
The Clever Part
- Recommended by the manufacturer for sushi and sashimi: a clear use case where the condiment has its own place at the table.
- The manufacturer states that it uses no additives and non-GMO soybeans and wheat.
Buyer questions answered
What does double brewed soy sauce mean?
For this sauce, naturally brewed Koikuchi soy sauce replaces salt and water in a second brewing. It describes a production method, not simply a recommendation to pour twice as much.
How long is this soy sauce brewed?
The manufacturer says it is naturally and slowly brewed for more than 1,000 days.
What foods does YAMASAN recommend it for?
The manufacturer recommends this soy sauce for sashimi and sushi.
Is this soy sauce wheat-free?
No. The manufacturer lists wheat alongside soybeans, salt and water as the ingredients of its authentic Koikuchi soy sauce.
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