Funazushi is the ancestor of all sushi: nigorobuna carp from Lake Biwa, salted and then buried in cooked rice to ferment for one to three years, a preservation method over a millennium old from which modern sushi eventually evolved. The result is nothing like the sushi the world knows — the flesh turns dense, tangy and creamy, with an aroma often compared to strong cheese — and it remains a proud, polarising delicacy cured by family houses around the lake, served sliced with the golden fermented rice, floated in hot broth as ochazuke, or nibbled alongside local sake, which flatters it best.
🗓️ At a Glance
| Location | Around Lake Biwa (Otsu, Takashima, Nagahama) |
| Hours | Specialist shops daytime; restaurants vary |
| Admission | Tasting portions ~¥1,000–2,500; whole fish ¥3,000+ |
| Time needed | Part of a meal |
| Best time | Year-round; sake pairing recommended |
What to Try
- Sliced funazushi with its golden fermentation rice.
- Funazushi ochazuke, mellowed in hot broth — the beginner’s door.
- Century-old curing houses around the lake shore.
- Pairing with local Shiga sake, its classic companion.
Combine Your Visit
- Combine with Hiyoshi sake breweries for the classic pairing.
- Pair with Lake Biwa’s fish cuisine for the full lake table.
- Read our Shiga overview .
Getting There
- Where: venerable curing houses in Otsu, Takashima and around northern Lake Biwa.
- Gentle start: several lakeside restaurants serve funazushi ochazuke sets.
Tips
Start with ochazuke if the aroma intimidates — hot broth softens the funk into something rounded and savoury, and many lifelong fans began exactly there. Buy vacuum-packed slices from a curing house as a safe-to-carry souvenir, and accept the price: each fish represents up to three years of care, which is exactly what you’re tasting.
