LogoMusubi
Macro close-up of handmade onigiri rice ball showing individual glistening Koshihikari grains and crisp nori seam

Pressed by hand. Every single one.

Koshihikari · Ariake Nori · San Francisco

Rice, shaped
into ritual.

Each onigiri is pressed from Niigata Koshihikari, wrapped in crisp Ariake nori that shatters on the first bite. Ready in under two minutes.

Order PickupRead the Story

12

Varieties daily

Niigata

Origin farm

<2 min

Pickup time

Scroll
The Origin

From Niigata field
to your hands.

Every card below is a chapter in the rice's journey — from volcanic soil to the press of a palm.

01

The Field

Uonuma, Niigata Prefecture. The Shinano River valley produces the most prized Koshihikari in Japan — short-grain, sticky, sweet. We source from a single family farm that has grown for four generations.

Vast Japanese rice paddy fields in Niigata stretching to misty mountains under golden morning light

Uonuma, Niigata — harvest season

Close-up of freshly cooked Japanese short-grain Koshihikari rice grains glistening with moisture in a wooden bowl

Koshihikari — the grain that holds

4°C

The temperature difference

Warm days and cold nights in the Uonuma valley force the rice to develop more starch — the secret behind Koshihikari's legendary stickiness.

Traditional wooden Japanese bowl with uncooked rice being rinsed in clear cold water by gentle hands

Washing — three rinses, no more

02

The Water

Rice washing is not cleaning. It is listening. Three rinses — enough to remove excess starch, not enough to strip the flavor. The water runs cloudy, then clear. That clarity is the signal.

Japanese woman's hands pressing and shaping a triangular onigiri rice ball with deliberate focused movements

The press — 28 grams of pressure

03

The Hands

Yuki learned to shape onigiri at age six, watching her grandmother at a Kanazawa konbini. The triangle is not folded — it is pressed three times, rotated, pressed again. Muscle memory that no machine replicates.

Crisp dark Ariake nori sheet being wrapped around a freshly pressed onigiri triangle on a hinoki wood counter

Ariake nori — harvested at low tide

Yuki Hashimoto, founder of Musubi, pressing an onigiri triangle with focused hands in a bright kitchen

6

Age she first
pressed rice

Niigata rice paddy field landscape with rows of green rice plants in summer
The Founder

Yuki Hashimoto
pressed her first triangle at six.

Growing up in Kanazawa, Yuki watched her grandmother shape onigiri every morning before school. Not as a task — as a practice. The same three-press rotation, the same pause before the nori wrap, the same quiet that settles when something is made exactly right.

She moved to San Francisco in 2018 and spent two years searching for a rice ball that measured up. When she couldn't find one, she built Musubi. The shop has been open since 2020. The rice is still from Niigata. The method is still her grandmother's.

Onigiri pressed daily200+
Years of practice24 yrs
Varieties at any time12

"The triangle is not a shape. It is a decision — that this rice, this filling, this person deserved something made with care."

Yuki Hashimoto — Founder, Musubi
0
0 onigiri
$0.00
Or subscribe weekly — 5-pack every Monday, 10% off