YAMASAN KYOTO UJI 500 Days Aged Koikuchi Soy Sauce 360ml

4.4
92
100+ Bought last month
Current Price $29.40
YAMASAN KYOTO UJI 500 Days Aged Koikuchi Soy Sauce 360ml
7.8
Expert Score

Quick Analysis Verdict

"For chefs and home cooks seeking authentic, additive-free 500-day aged Koikuchi soy sauce; not ideal for budget, mass-market substitutes."

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Best Application

Authentic Japanese cooking requiring deep, layered umami—sushi rice seasoning, marinades, and reduction sauces.

Investment Value

Overpriced

Durability Index

Long shelf life when stored in a cool, dark place; refrigeration after opening optional

Key Buying Points

500+ days aging delivers deep umami and a refined, balanced finish that enhances marinades, sauces, and right-out-of-the-bottle flavor.

Artisanal, Tatsuno-brewed in Japan using traditional techniques and multi-sensory quality checks for consistency and soul.

Non-GMO whole soybeans and Non-GMO wheat with 100% sun-dried sea salt; additive-free and strives for purity.

Versatile usage across cuisines: marinades, stir-fries, noodles, and even flavor boosters for seafood and stews.

Heritage craftsmanship: produced in Tatsuno, a historic hub for soy sauce, reflecting long-standing regional expertise.

Premium packaging: 360ml bottle sized for gifting, tasting sessions, or regular use without opening often.

Allergen note: contains soy and wheat; suitable for many plant-based diets but not gluten-free.

The Catch

Premium price point relative to mass-market soy sauces; value hinges on appreciation for traditional aging and craft.

Contains wheat; not suitable for gluten-sensitive individuals or strict gluten-free diets.

Limited regional production and artisanal nature may lead to sporadic availability or supply constraints.

Traditional fermentation means batch variability can occur and may require careful tasting to balance dishes.

Open-time quality may depend on storage conditions; refrigeration is optional but can help longevity.

Performance Scorecard

Performance 8.0
Quality 8.0
Value 6.0
Ease of use 9.0

Common Questions & Expert Insights

Q: Is this soy sauce gluten-free?
No, not gluten-free. It contains wheat; suitable for many diets but not for gluten-free needs.)
Q: Is this vegan-friendly?
Yes, it is vegan. Ingredients are plant-based (soy, wheat, salt) with no animal products.)
Q: Should I refrigerate after opening?
Refrigeration is optional. Soy sauces are shelf-stable; cool, dark storage preserves quality, refrigeration can extend freshness.)
Q: How does it compare to regular soy sauce?
It’s richer and more complex. 500+ days of aging plus natural brewing yields deeper umami than standard sauces.)
Q: What dishes pair well with it?
Excellent across dishes. Ideal for sushi accompaniment, marinades, stir-fries, noodles, and glaze finishes.)
Q: Is it suitable for low-sodium diets?
Not specifically low-sodium. It remains a traditional soy sauce with typical salt balance.)
Q: What size is the bottle?
360ml bottle. Compact yet ample for tasting and regular use.)
Q: Where is Tatsuno located?
Brewed in Tatsuno, Japan. A historic region renowned for soy sauce craftsmanship.)
Q: Can I use it for sushi rice?
Yes, it enhances sushi rice. Its depth and balance improve flavor without overpowering delicate grains.)
Q: How long is the flavor good after opening?
Best within months after opening. Keep sealed and store in a cool, dark place to preserve nuances.)

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