How does this differ from the koikuchi sauce of the same brand?

When it comes to make koikuchi soy sauce, the ingredients are koji(attached to soybean&wheat) and salt water. When making this premium soy sauce, instead of salt water, soy sauce once brewed are used, meaning that this premium soy sauce is double brewed with double ingredients & times. By doing so, the flavor and umami turn deeper and stronger.

Looking for artisinal japanese soy like that featured in salt*fat*acid*heat (samin nosrat). thick, has "legs"! any suggestions?

This brand is very salty.. I would suggest Jimmy Chews (?) Chinese soy.. very thick, tasty, mild salt. And a cool bottle. 😁

Is this brewed in metal or in wood barrels?

As Japanese soy I assume wood. I have been there years ago to a plant with this name. I can't attest today how it is made.

Is it gluten free is it gluten free

It is made the ancient traditional way from soy beans, wheat, and sea salt with active enzymes. There is a youtube video showing the building this is made in, which dates back hundreds of years. In the end though, wheat is used in the fermentation process which could result in trace amounts of gluten being found in the sauce. I'm not a food scientist, but if your reaction to gluten is strong, might want to avoid all soy sauce. If you can tolerate this, I'll say it is sooo much better than factory produced brands and highly recommend!

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YAMASAN KYOTO UJI Soy Sauce Double Brewed Vintage 1000 Days Aged, Japanese Artisanal Handmade, Naturally Brewed, No Additives, Non-GMO, Made in Japan(360ml)【YAMASAN】

YAMASAN KYOTO UJI Soy Sauce Double Brewed Vintage 1000 Days Aged, Japanese Artisanal Handmade, Naturally Brewed, No Additives, Non-GMO, Made in Japan(360ml)【YAMASAN】

Product ID: 612589064

Details

Allergen information
Soy
Brand
YAMASAN KYOTO
Flavour
Soy
Package information
Bottle
Specialty
Additive Free

⏳1000 days aged

🌿No additives, Non-GMO

🛠️Handmade artisanal craft

YAMASAN KYOTO UJI Soy Sauce Double Brewed Vintage 1000 Days Aged, Japanese Artisanal Handmade, Naturally Brewed, No Additives, Non-GMO, Made in Japan(360ml)【YAMASAN】

Product ID: 612589064

Details

Allergen information
Soy
Brand
YAMASAN KYOTO
Flavour
Soy
Package information
Bottle
Specialty
Additive Free

⏳1000 days aged

🌿No additives, Non-GMO

🛠️Handmade artisanal craft

Description

🍶 Unlock the timeless umami of Kyoto’s finest soy sauce—aged to perfection, crafted for connoisseurs.

LIMITED EDITION LEGACY - Small-batch production preserves artisanal quality—own a rare piece of culinary heritage.
CENTURY OLD CRAFTSMANSHIP - Rooted in 135+ years of traditional brewing mastery from Kyoto’s soy sauce capital.
TRIPLE YEAR DOUBLE BREWED - Slow, natural fermentation over 1000 days ensures unmatched depth and umami.
PURE NATURAL INGREDIENTS - Non-GMO, additive-free formula for a clean, authentic taste that respects your health.
VERSATILE GOURMET ESSENTIAL - Elevate everyday meals with a rich, complex soy sauce that impresses discerning palates.

YAMASAN KYOTO UJI Soy Sauce is a premium, double-brewed artisanal soy sauce aged naturally for 1000 days. Handmade in Japan using traditional methods and non-GMO ingredients, it offers a rich, authentic flavor without additives. Limited in quantity, this 360ml bottle embodies over a century of brewing heritage from Kyoto’s historic soy sauce town.

Specifications

ASIN	B08VGBWQJW
ASIN	B08VGBWQJW
Age Range Description	Adult
Allergen Information	Soy
Best Sellers Rank	#34,149 in Grocery ( See Top 100 in Grocery ) #111 in Soy Sauce
Brand Name	YAMASAN KYOTO UJI
Color	A417
Container Type	Bottle
Cuisine	Japanese cuisine
Customer Reviews	4.7 4.7 out of 5 stars (962)
Customer reviews	4.7 4.7 out of 5 stars (962)
Diet Type	Vegetarian
Flavor	Soy
Item Package Weight	0.65 Kilograms
Manufacturer	YAMASAN KYOTO UJI
Manufacturer	YAMASAN KYOTO UJI
Manufacturer Contact Information	ATT: Tohru AOSHIMA, Umstr.19,47929 Grefrath Germany, 47929, Grefrath, DE
Number of Items	1
Number of Pieces	1
Package Size Name	12.1 fl oz
Product Dimensions	20 x 6 x 6 cm; 649 g
Size	12.2 Fl Oz
Specialty	Additive Free
Unit Count	360.0 Milliliters

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