Funazushi: The fermented predecessor of modern sushi - BBC Travel

On any fine day in spring, when the sky is clear and the waters of nearby Lake Biwa are calm enough for locals to go carp fishing, you can find Mariko Kitamura and her husband Atsushi at their shop Kitashina in the small Japanese town of Takashima making sushi.

With the dexterity and speed you'd expect from sushi chefs, they scrape off the fish's scales with a knife, remove its gills and carefully angle a skewer down its throat to remove its innards without penetrating its flesh. But what happens next is truly unexpected. They pack the fish with salt, layer them in a wooden tub, weigh the lid down with 30kg stones and leave them to cure for two years. Each fish is then thoroughly rinsed, dried in the sun for a day and fermented for one more year in cooked rice before it is ready to be eaten.

This is not the kind of sushi you might get in New York or London, or even easily in Tokyo for that matter. It is the predecessor of what the world now knows as sushi – the original sushi – called narezushi (fermented sushi). Kitamura's family has been making it for 18 generations, ever since Kitashina opened in 1619 in this remote corner of Shiga prefecture, and today the centuries-old shop is one of a handful of places left in Japan, and the world, where you can experience how "real" sushi is supposed to taste.

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