Nanatsuboshi

While Yumepirika gets the headlines, Nanatsuboshi (ななつぼし) quietly holds the throne as the most widely planted rice in Hokkaido -- and has done so for over fifteen years. Named after the Big Dipper (Hokuto Shichisei, the "Seven Stars" that guided settlers across Hokkaido's frontier), Nanatsuboshi is not a special-occasion rice. It is the rice Hokkaido eats every single day, 365 days a year. And that relentless consistency is precisely its genius.

From "Nuisance Rice" to Daily Staple

Hokkaido's rice history is a long climb from ridicule to respect. For decades, the island's short summers produced grain that was useful only for industrial processing -- earning the mocking label "yakkai-do mai" (nuisance rice). The turnaround came in stages: Kirara 397 in 1988, Hoshinoyume in 1996, then Nanatsuboshi, adopted as Hokkaido's recommended variety in 2001.

Nanatsuboshi was bred at the Hokkaido Central Agricultural Experiment Station in Iwamizawa, crossing Hitomebore (mother) -- a top eating-quality variety from Tohoku -- with Akiho (father), a cold-tolerant, high-yield Hokkaido-adapted line. The result combined Tohoku flavor genetics with northern toughness: a true hybrid of Japan's rice traditions.

By 2008, Nanatsuboshi overtook the long-reigning Kirara 397 in Hokkaido's planted acreage, and it has led ever since. It is the rice that proved Hokkaido could produce not just "acceptable" grain, but grain people actively chose over Honshu alternatives.

Over 15 Consecutive "Special A" Ratings

Nanatsuboshi has earned the Japan Grain Inspection Association's top "Special A" rating for over fifteen consecutive years -- one of the longest active streaks in the country. Where flashier cultivars may spike one year and dip the next, Nanatsuboshi simply delivers. Every year. The word "consistency" appears in nearly every professional evaluation.

The stability comes from its starch profile. Nanatsuboshi has slightly higher amylose than sticky-leaning varieties, giving it a grain-forward texture with discernible individual grains. Yet the sweetness that emerges as you chew is fully satisfying. This "subtractive beauty" -- strength through what it does not do -- is what keeps it at the top year after year.

Why Sushi Chefs and Wok Cooks Both Want It

Nanatsuboshi's versatility is extraordinary. The grains hold their shape, stay glossy when cool, and resist hardening -- properties that sushi chefs prize for shari. Several popular sushi restaurants in Tokyo and Sapporo specify Hokkaido Nanatsuboshi by name. The grains separate cleanly, absorb vinegar evenly, and support delicate toppings without competing.

By the same logic, Nanatsuboshi excels in a wok. Stir-fried rice demands grains that stay distinct under high heat and oil. Koshihikari's stickiness tends to clump in a wok; Nanatsuboshi stays loose and separate, producing the "para-para" (grain-by-grain) finish that defines good chahan (fried rice).

Recommended pairings:

• Onigiri and sushi: grain definition and cool-temperature gloss
• Chahan and fried rice: clean separation under heat and oil
• Curry and donburi: absorbs sauce without dissolving
• Bento: hours-long stability without hardening
• Delicate Japanese dishes: grilled fish, simmered dishes -- the rice supports without competing

How to Cook It

Keep it simple. Water slightly below the standard line. Soak 30 minutes or more. Rinse quickly -- just enough to remove surface bran, not to strip the grain. After cooking, open the lid promptly to release excess steam, then fluff in a cross pattern. These minimal steps maximize Nanatsuboshi's signature grain definition and luster.

Hokkaido's Quiet Pride

Nanatsuboshi was never designed to be the star of a special dinner. It was designed to be perfect for every dinner. It lacks the dramatic stickiness of Yumepirika or the bold sweetness of Koshihikari, and that is exactly the point. "Delicious today, delicious tomorrow" -- that phrase, repeated by Hokkaido rice farmers, captures the cultivar's philosophy.

The price is typically more modest than Koshihikari-tier brands, making it an accessible entry point for anyone exploring Japanese rice. If you spot it at a Japanese grocery store or online, pick it up. Cook a pot with just a touch less water than usual, shape a salt-only onigiri, and taste what Hokkaido's researchers spent decades building: a rice that never tries to impress you and never fails to satisfy.