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Yusamashi - GYOKKO Ash Glaze
Yusamashi - GYOKKO Ash Glaze
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Made in Japan
Unlock the full potential of your tea with this essential Yuzamashi (water cooler). Transferring boiling water into this vessel immediately drops the temperature by 5-10 degrees Celsius, allowing you to reach the ideal brewing range for premium leaves.
Since Sencha flourishes at 70 degrees Celsius and Gyokuro requires a delicate 40 degrees Celsius, this tool is vital for extracting maximum umami without the bitterness. It serves as a must-have item for anyone seeking the authentic taste of Japanese tea.
Please note that Yuzamashi crafted by Gyokko feature a unique "Gyokko" stamp rather than the standard "Gyokko" mark found on his teapots.
Gyokko Kiln
Master artisan Umehara Gyokko II handcrafts each piece at the renowned Gyokko Kiln. Both the second and third generations of the Gyokko family are certified Traditional Craftsmen, ensuring world-class quality in every vessel.
Note: As these items are handmade, individual dimensions and capacities vary. The natural kiln-firing process creates unique color variations, meaning your product may differ slightly from the images shown.
Tokoname Ware
Dating back to the late Heian period, Tokoname is one of Japan's Six Ancient Kilns. Artisans utilize iron-rich clay from the Chita Peninsula to create the iconic "Shudei" (red clay) finish. This traditional material and firing technique define the legendary heritage of Tokoname stoneware.
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Product Details
Product Details
Content :
Hot Water Cooling Vessel(Yusamashit) x 1
Type:
Tea Accessories
Materials:
Ceramics
Made In:
Aichi, Japan
Product Size & Weight
Product Size & Weight
Dimensions: Approx. 17x13x7cm
Note:
1 inch = 25.4 mm
1 inch = 2.54 cm
1 lb = 453.59 g
1 oz = 28.35 g
Care Guide & Precautions
Care Guide & Precautions
While we strive to display colors and textures accurately, please note that each handcrafted piece possesses a unique size and weight.
You may notice natural variations such as subtle color gradients, glaze drips, or pinholes. These characteristics highlight the authentic kiln-fired process and do not affect the product's quality or functionality.
Actual colors may vary slightly depending on your lighting environment or monitor settings.
To maintain the beauty of your item, wash it promptly after use and dry it thoroughly.
About Shipping
About Shipping
Carrier:
EMS, Fedex or DHL (include insurance and tracking number)
Handling Time:
Around 2 Business Days
Shipping Discount
Shipping Discount
| Cart Value | Shipping Discount |
| $50 USD | 20% |
| $100 USD | 30% |
| $150 USD | 40% |
| $200 USD | 50% |
| $250 USD | 60% |
| $500 USD | Free |
Blog Links
Blog Links
Product Manufacturer
Product Manufacturer

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Need a little help in Osaka? Just ask us!
When that happens, Luxcras Concierge is here to help — for free!
We offer online support, and when needed, brief in-person assistance in Osaka (such as directions or ordering support).
About Us
Delivering Traditional Japanese Craftsmanship to the World with Dedication
Crafted with meticulous attention to detail, our Japanese-made products exemplify quality and craftsmanship that enrich your daily life with radiance. We promise to deliver a lifestyle that is both bright and of the highest caliber.
Frequently Asked Questions (FAQ)
FAQ 1 Where are the items made?
All products we sell are made in Japan. Enjoy our carefully crafted Japanese items.
FAQ2 When will I receive my items?
Most items ship within three business days, and delivery times vary by shipping company but typically take 2-5 days. For more details, please check our 'Shipping' section.
FAQ3 Can I pay with a credit card?
Yes. We accept VISA, Mastercard, AMEX, and JCB credit cards. Payments via Shop Pay, Apple Pay, and Google Pay are also possible.
FAQ4 I received a damaged item.
Please email us at (support@luxcras.com) within 48 hours of receipt with photographs of the damaged item and packaging. We will offer to send a replacement or provide a refund.









