TOYOUKE Tanto Charcoal Vessel Beverage Tumbler Kawasaki City Japan

Save $17.34

Style: TT-07
Sale price$17.35 Regular price$34.69


Tanto TT-18 (wide-mouth tumbler)
Capacity: approx. 300cc/Height: approx. 12cm/Opening: approx. 8.5cm. This pottery item was fired together with charcoal in a special carbonizing furnace.

Capacity: approx. 270cc/Height: approx. 8.5cm/Opening: approx. 9.5cm
Usage precautions
Do not use in a microwave oven, oven, or over an open flame (except for earthenware pots).
Do not freeze the vessel, as it may cause cracking.
When washing, wash lightly with a wet sponge in cold or lukewarm water without detergent and dry thoroughly.
Do not use in a dishwasher or dish dryer.
Boil once a month and then dry in the sun to maintain its effectiveness.
The color of the product will change with use, but this is inherent in the nature of the charcoal.

The firing of the bamboo charcoal powder into the clay gives it a unique appearance, and enhances the vessel with the benefits of the bamboo charcoal. When tap water is poured into the cup, countless invisible pores in the bamboo charcoal absorb excess substances, and the mineral in the bamboo charcoal dissolves into the water, transforming it into a mineral water-like beverage. Beer becomes creamy and foamy, and the taste is mellowed, while coffee becomes smoother as the impurities are removed. Bamboo charcoal is also said to have antibacterial properties and the ability to restore substances to their original state.


Pottery with charcoal kneaded into the clay does exist, but this product is coated (fired) with fine bamboo charcoal powder that is produced during the carbonization of bamboo and baked into the surface. This gives the pottery a unique appearance and luster due to the minerals and proteins in the bamboo charcoal. The baked bamboo charcoal adsorbs excess substances in the beverage, and the minerals within the bamboo dissolve into the drink. The adsorption capacity and mineral content of the bamboo charcoal may decrease with use, and some charcoal may peel off, but it can be restored by re-baking in a Sumiyoshi.

Our Story

Charcoal products from Sumiyoshi. are designed to make effective use of forest resources such as thinned wood from forest and bamboo grove maintenance. One of the reasons for the lack of progress in forest maintenance is that the thinned wood and other resources generated through forest thinning are of low value because there is no adequate place to use them. By manufacturing specialized charcoal from these resources and developing high value-added products that make use of the charcoal's various functionality and benefits, we are adding value to forest resources. In this way, we are engaged in a positive environmental feedback loop where the more our products reach the market, the more forests and bamboo groves can be maintained.


- Do not use in microwave ovens, ovens, or over an open flame (except for earthenware pots).
- Avoid freezing the product, as it may cause cracking.
- When washing, do not use detergent; wash lightly with cold water or lukewarm water and a wet sponge, and wipe thoroughly and allow to air dry.
- Do not use in a dishwasher or dish dryer.
- The effect will last longer if you boil it once a month and then dry it in the sun. The color of the item will change with use, but this is an inherent aspect of charcoal ceramics.


There is a famous shrine called “Ise Jingu” in Ise, Mie Prefecture, Japan.
Ise Jingu has two shrine structures. The outer shrine, which enshrines Toyouke – no – Omikami
and the inner shrine, which enshrines Amaterasu – Omikami.
Oyouke – no – Omikami is the Japanese goddess of the harvest and she serves Amaterasu –
Omikami, the head goddess of the Shinto religion.
We named our company “Toyouke” because we always want to show the same caring and
loyalty to our customers that Toyouke – no Omikami shows to Amaterasu.

[For Sales Representatives, Retailers, and Distributors]

We welcome inquiries about our products from retailers, distributors, and wholesalers around the world. While j-Grab Mall is Japan's No. 1 B2C cross-border e-commerce platform, many Japanese-made products are also available for B2B transactions.

If you provide us with details such as the quantity you are interested in purchasing and conditions, we can provide you with a quotation.

To all Sales Representatives, Retailers, and Distributors, please feel free to request sample products from us and experience the quality of Japanese-made products firsthand! At j-Grab Mall, our dedicated staff can handle B2B negotiation and communication on your behalf.

For more information, please send an inquiry via eBay Message Board. We appreciate your interest and look forward to working with you!


Kawasaki City Store

KAWASAKI CITY STORE will send the curated collection of products from City of Kawasaki in Japan for everyone around the world We promise to support customers kindly, courteously and promptly based on O-mo-te-n-shi mind!

KAWASAKI CITY is located just west of Tokyo in Japan. As a part of Tokyo metropolitan area, the city has contributed Japanese industrialization and modernization.

Furthermore, KAWASAKI CIY is one of The 53 Stations of the Tokaido (Hiroshige Utagawa, 1832-1833) and is along the Tokaido road, the highway connecting Edo to Kyoto. Accordingly, we respect not only Japanese modern cultures but also Japanese traditional cultures. Through this store, overseas customers can purchase a variety of products made by Japanese specialists from glass artisans to sheet metal workers.

KAWASAKI CITY STORE is a one-year limited store from December 2022 and is operated by a joint venture between j-Grab Inc. and JTB Corporation, commissioned by City of Kawasaki. We also plan a pop-up shop for show rooming in Cambodia, Singapore and USA. Customers can check our products in the real world at the shop and place an order through this online store.

Customers can check our products in the real world at the shop and place an order through this online store.

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