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Narezushi

Japanese: 熟れ寿司（なれ寿司）

A preserved food made by lacto-fermenting fish with salt and rice for extended periods. The prototype of modern sushi, with roots traced to Southeast Asia.

Narezushi is fish preserved with salt and rice through lactic acid fermentation. Originating from freshwater fish preservation in Southeast Asia, it reached Japan before the Nara period. Regional forms survive: funazushi in Shiga, sanma narezushi in Wakayama, kaburazushi in Ishikawa. The rice serves as a fermentation medium and was originally discarded, not eaten. Modern sushi evolved from hayazushi, a quick-prepared version of this ancient form. Modern nigiri sushi descends from hayazushi, which uses vinegared rice for eating. The transition from narezushi to hayazushi is a microcosm of how fermented foods have adapted to the pace of each era.

Related words

Lactic acid bacteria (LAB)

A general term for bacteria that produce lactic acid from sugars. They contribute to a wide range of fermented foods including pickles, yogurt, and miso, creating acidic environments that improve preservation.

Preserved Food

A general term for foods preserved through salting, drying, smoking, or fermentation. Before refrigeration, these techniques ensured stable food supplies.

Funa-zushi

Made with nigorobuna crucian carp from Lake Biwa, salt-cured and lacto-fermented with cooked rice for months. It is Japan's oldest sushi form and the representative narezushi.

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