Description

Winner of the 2021 International Superior Taste Award

Award-Winning Japanese Organic Rice Vinegar

Kokoro Japanese Organic Rice Vinegar is a traditionally fermented organic rice vinegar crafted using only organic rice, pure spring water from Mount Fuji, and the natural action of koji culture, yeast, and acetic acid bacteria.

Slowly fermented and naturally aged for over 13 months, this raw and unfiltered vinegar develops mellow acidity and deep umami. It also offers an aromatic complexity rarely found in modern commercial rice vinegars.

Made with four times more organic rice than required under Japanese JAS standards for rice vinegar classification, Kokoro delivers exceptional depth, balance, and character.

The International Taste Institute recognised its outstanding flavour and craftsmanship with a 2021 International Taste Award.

Raw & Unfiltered

Naturally Clarified Through Long Ageing

Unlike many industrial vinegars that undergo mechanical filtration and heat processing, Kokoro is left to mature undisturbed in traditional earthenware vessels.

Over time, the vinegar naturally clarifies itself. The producer carefully bottles only the pristine upper layer without filtration machinery or filtering agents.

As a result, the vinegar develops a softer, fuller flavour profile with natural depth and complexity.

Made with 4× More Organic Rice

Full-Rice Fermentation for Richer Umami

In contrast, many commercial rice vinegars contain surprisingly small amounts of rice. Producers often dilute them with brewing alcohol or other grains to accelerate production and reduce costs.

Kokoro is different.

Furthermore, the producer uses four times the amount of organic rice required under Japanese JAS standards. The vinegar is naturally fermented for approximately five months before undergoing a further eight months of slow maturation.

Consequently, this patient, rice-rich process creates a noticeably deeper flavour, gentle sweetness, and elegant umami that rapid industrial methods cannot replicate.

Traditional Japanese Fermentation Craftsmanship

A Rare Slow-Aged Pantry Ingredient

Kokoro reflects a disappearing style of Japanese fermentation craftsmanship where time, patience, and natural microbial activity are prioritised over speed and efficiency.

Made in small batches using traditional methods, this organic rice vinegar appeals to those seeking authentic Japanese pantry ingredients with genuine provenance and character.

Its balanced acidity and layered flavour make it particularly well suited to sushi rice, dressings, vinaigrettes, pickling, marinades, dipping sauces, cold noodle dishes, and as a finishing ingredient for vegetables and seafood.

Pure Ingredients Only

Kokoro is made using only organic rice, Mount Fuji spring water, koji culture, natural yeast, and acetic acid bacteria. The producer adds no brewing alcohol, uses no additives, and introduces no alternative grains at any stage of production.

The result is a vinegar that expresses the full character of organically grown rice through traditional Japanese fermentation.

Why It Tastes Different

Meanwhile, many commercial rice vinegars rely on minimal rice content, brewing alcohol, rapid fermentation methods, and intensive filtration to increase production efficiency.

Kokoro follows a very different path.

The manufacturer Totsuka produces every bottle through 100% organic rice fermentation. It undergoes more than 13 months of natural fermentation and ageing. The vinegar is matured in traditional earthenware vessels and bottled without filtration.

Combined with the use of four times more organic rice than required under Japanese standards, this slow and uncompromising approach creates a vinegar with exceptional aroma, softness, depth, and lingering umami.

Shelf Life

The official shelf life is two years from production.
Due to the exceptionally long fermentation and ageing process, together with limited shipping schedules from Japan, we guarantee a minimum remaining shelf life of one year upon purchase.