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To undo means to return something to its original state—to gently unravel it.

“Undo” carries the meaning of restoring what has been tightened or distorted. We undo modern diets that lean too heavily on wheat, returning them to Japan’s original rice-based food culture. We undo the burden placed on the digestive system by gluten and additives—releasing and easing the gut. Here in Hiroshima, we offer an experience that undoes both convention and the body, inviting you to gently unravel and reset.
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Undo the World. Undo the Body.

Mission

New Possibilities for Food, Born from Challenging Assumptions

The Status Quo

What is your relationship with udon?

“Udon must be made from wheat.”
“Gluten and chewiness define real udon.”
“Rice flour noodles are merely a second-best alternative.”

What We Believe to Be True

Our Shared Perspective

“Why not create the ultimate noodle from rice, Japan’s true staple?”
“What if pleasure in texture didn’t depend on gluten?”
“What if udon could nourish the body, not just fill it?”

Best Sellers

Discovering New Value

  • Wheat Flour vs. Rice Flour — A Shift in Value

    Moving away from a passive value—“wheat-free as an allergy-friendly option”—toward an active one: noodles that fully express the umami of rice and are exceptionally gentle on the Japanese body.

  • A New Habit with Rice Flour

    Undoing the burden on the digestive system—resetting the body through food. At undo udon Factory -Our LABO, we create a new habit: to make, to learn, and to enjoy eating deliciously.

  • Shaping the Era of Choosing Rice Flour and Making Udon

    Just as the third wave of coffee celebrates the unique character of beans, we aim to build a culture where udon is chosen by the variety and origin of the rice flour. From Hiroshima, we begin shaping a new future for udon.

Concept

Undo the World. Undo the Body.

“Undo” means to return something to its original state—to gently unravel it. We undo modern diets that have become overly dependent on wheat, returning them to Japan’s original rice-based food culture. We undo the burden placed on the digestive system by gluten and additives—releasing and easing the gut. Here in Hiroshima, we offer an experience that gently undoes rigid assumptions and the body itself.

Mission

Rewriting the Rules of Udon—and Restoring the Value of Rice from Hiroshima

As global demand for gluten-free food continues to grow, we present a new choice from Hiroshima—a city that symbolizes recovery and creation. Not rice as a substitute for wheat, but rice flour noodles as a leading ingredient in their own right. From Hiroshima, we aim to rewrite the conventions of udon and achieve a true revival of rice.

Vision

A Future Where “Rice Udon” Becomes the Global Standard for a Body-Respecting Choice

We envision a future where Rice Udon is recognized around the world as a mindful, body-respecting choice at the table. Going beyond simply selling food, we aim to build a circulating system—one that includes revitalizing abandoned farmland and working closely with local farmers. In this system, the healthier the people who eat, the stronger Hiroshima’s agriculture becomes, creating a future where food, health, and the region grow together.

Our Initiative

  • Craft Rice Noodles&Noodle Detox

    Rather than producing low-cost, factory-style udon, we position our noodles as crafted works, with meticulous attention given to everything from rice selection to production methods.
    We propose a new food habit: “Today, I want to rest my stomach—so I undo.”
    A mindful choice that gently resets the body through eating.

  • A New Choice — Lightness After Eating

    We define value by how the body feels after a meal— not feeling sleepy, not feeling heavy. We aim to make indicators such as “post-meal performance retention” visible, appealing to business professionals and athletes alike.

  • Stores as Places to Reset

    More than just restaurants, our locations are designed as places where busy modern lives can reset— like hydration stations for the body and mind.

  • Connecting with Okonomiyaki Culture

    We strengthen our proposal to replace the wheat-based soba in Hiroshima’s soul food, okonomiyaki, with rice-flour udon. By leading the development and promotion of gluten-free okonomiyaki, we aim to create a new Hiroshima specialty. 
    *We also operate okonomiyaki restaurants ourselves.

Why Now, and Why Hiroshima?

Why Us?

Why Rice-Flour Udon?

Thanks to technological innovation, it is now possible to achieve entirely new textures—chewy and silky—that wheat cannot deliver.

Why Now?

This is the ideal moment, driven by growing health consciousness, rising imported wheat prices, and increasing interest in food self-sufficiency.

Why “Undo” from Hiroshima?

Hiroshima is a global symbol of peace and recovery. Its story strongly resonates with our mission to overturn conventional thinking and share a new value—the potential of rice—with the world.
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Get in Touch

Available for Online Purchase

〒730-0051 広島市中区⼤⼿町1丁⽬5-18 IBAビル1階

1F IBA Building, 1-5-18 Otemachi, Naka-ku, Hiroshima 730-0051, Japan