About us

Edo kuzumochi, chic, healthy and cute!
An Edo-style snack made into a pop-up Japanese sweet.

Edo Kuzumochi is a brand launched in 2015 by Yamashin Shokusan Corporation, a factory specializing in kuzumochi, to celebrate its 60th anniversary.

KUZUMOCHI is a simple Japanese confectionery that has been eaten in Tokyo for centuries, and we have turned it into a "delicious and cute" Japanese sweet that can be enjoyed by everyone from children to the elderly.

  1. 01. Kuzumochi

    Kuzumochi in Tokyo is written in Chinese characters as "久寿餅," which means "longevity without illness for many years".

  2. 02. Fermentation

    Tokyo's Kuzumochi is a fermented food that is rare in Japanese confectionery. Starch from wheat, from which gluten is removed, is lactobacillus fermented for more than two years, then washed in water for about a week at the factory and steamed to the optimum flavor and acidity. The longer the fermentation period (over 730 days), the finer the starch becomes due to enzymatic decomposition, making it smoother to the palate and giving it a unique texture that is more moist and crispy.

  3. 03. Keep the gut healthy

    Powdered and fine wheat starch is digested without burden in the intestines. It has been reviewed as "the best beauty food" because it is easy to digest and keeps the stomach full. In addition, it has been selected as a Japanese "super food" because the plant-based lactic acid bacteria feed the good bacteria in the intestines and activate the intestinal lining.

  4. 04. Kuromitsu

    The "Kuromitsu Manager" has evolved a recipe that has been used for over 55 years to create a rich and full-bodied Kuromitsu that is even more delicious and pleasing to the palate. It is a gem made by carefully blending several kinds of sugar and simmering it slowly over a long period of time. In December 2028, at the 65th Edogawa Ward Industrial Awards Ceremony, Zenya Umezawa, a.k.a. "Director of Kuromitsu Department," received the Technical Achievement Award.

  5. 05. Kinako

    Exquisite roasting techniques are required to create the aroma of soybean flour that stirs the hearts of people. Our unique deep hot-air roasting method slowly draws out the aroma and sweetness of soybeans over time, and then crushes them into small pieces to create a gentle, melt-in-your-mouth texture.

Drizzle Kuzumochi with molasses and soybean flour and enjoy the nostalgia of downtown Tokyo.

Edo Kuzumochi is naturally fermented for 730 days, has no preservatives, is vegetable-based, and contains no eggs or dairy products. It contains no gluten and is a healthy Japanese confectionery.

Corporate Information

Company NameYamashin Shokusan Co.
Location4-20-12 Higashi-Komatsugawa, Edogawa-ku, Tokyo
Board of Directors and Executive OfficersChairman of the Board Nobumitsu Koyama
President and Representative Director Shintaro Koyama
Maiko Koyama, Director
EstablishedDecember 26, 1973
Business activitiesManufacturing and sales of kuzumochi (rice dumplings made of kuzu)
All business incidental to the above
Capital10 million yen


1955Nobuakiyo Koyama establishes a fu production and sales business in Kami-Hirai, Katsushika-ku, Tokyo. Yamashin Foods is established.
1963Expands into the production and sale of Kuzumochi and Tokoro-ten
1966Begins production and sales of Anmitsu (sweet red bean paste).
1973Established a new factory in Higashi-Komatsugawa, Edogawa-ku, Tokyo, and reorganized as Yamashin Shokusan Co.
1976Begins production and sales of Ningyo-yaki (doll-shaped pancakes)
1981Nobumitsu Koyama II becomes president.
1981Introduction of automated production line for Kuzumochi production. Started manufacturing own products and OEM (Original Equipment Manufacturer) and specialized in Kuzumochi manufacturing.
2010Shintaro Koyama, the third generation, became the president.
2010Begins selling the industry’s first heart-shaped Kuzumochi
2011Started selling Kuzumochi directly from the factory on Tuesdays only.
2012Started selling Kuzumochi in front of the ticket gates of Funabori Station on the Toei Shinjuku Line on Fridays only.
2013Started selling Kuzukuzu Shake.
2014Started to hold events at department stores.
2015Commemorates 60 years in business and launches original brand EDO KUZUMOCHI.
2016First in the industry to start selling fruit Kuzumochi (Tochiotome).
2017EDO KUZUMOCHI is selected as one of six Japanese confectionery stores from all over Japan at the special Ginza Matsuya Valentine’s Day event venue. The company is named the top seller on Valentine’s Day in the Japanese confectionery industry for the fourth year in a row, and is now located in the center of the venue among the chocolate shops.
2018Lumine-sponsored Wagashi Market. Selected as one of 28 brands of Japanese sweets shops from all over Japan.
2019Zenya Umezawa, in charge of molasses, received the Award for Technical Achievement at the 65th Edogawa Ward Industry Awards Ceremony in 2019, which only one person out of 200,000 workers in Edogawa Ward can receive, and the first in the food industry.
2020EDO KUZUMOCHI opens a permanent store on the 1st floor of the Nihombashi Takashimaya Shinkan S.C.


I want to bring the freshly made, delicious taste of my grandfather’s cooking to our customers.

山信食産 三代目 代表取締役社長 小山信太郎

My childhood snack was getting fresh (ready-made) Kuzumochi from my grandfather.

It was so delicious that I could eat it every day and never get tired of it. I think my grandfather was happy to see the joy on our brothers’ faces.

Twenty-five years later, when I joined the company, I had my first taste of fresh kuzumochi in a long time. I was surprised at how delicious it reminded me of my childhood. I started a new brand “EDO KUZUMOCHI” because I wanted many people to enjoy it and be happy with it.

We will continue to work hard to offer new tastes and ways of eating the precious “fresh kuzumochi” that can only last for two days after two years of fermentation, so that customers in my hometown of Edogawa Ward and other areas of Tokyo will choose it as their favorite confectionery.

In the future, my grandchildren will enjoy eating Kuzumochi every day, and I intend to develop it into an Edo-Kuzumochi that will bring smiles to the faces of our customers.

Owner Shintaro Koyama

Privacy Policy

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Operator InformationOperator: Yamashin Shokusan Co.
Site URL: edokuzumochi.jp
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First published: October 01, 2020
Last updated: October 03, 2020


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