Lowball glass -"燦彩"Sansai , White by Goun Maeda

Kiyomizu-Ware Crystal Glaze Rock Glass

Savor your evening ritual with this handmade ceramic rock glass from Goun Kiln in Higashiyama, Kyoto. Each glass is finished in a “crystal glaze” that evokes ice crystals—an exquisite example of traditional japanese pottery.

No two patterns are alike, giving each piece a bespoke feel.

Hit Success on Makuake

When we launched this project on Makuake in February 2025, it surpassed its funding goal by a wide margin—proof that lovers of japan’s handcrafted ceramics embrace its artistry.

One-of-a-Kind Zinc Crystal Patterns

Fired at 1,250℃, the zinc-infused glaze forms natural crystal structures. Depending on the light, you’ll see hues of blue, green, and even silver—adding subtle sparkle to your favorite spirit.

Perfect Gift or Personal Indulgence

Choose our signature KOTOPOTTER gift box for a memorable present—ideal for friends, family, or colleagues who appreciate kyoto pottery and traditional craftsmanship.

Note: Gift box is not included if you select “Home Use.”

Ergonomic Form & Versatile Capacity

Wheel-thrown and hand-shaved by artisans, each glass offers just the right weight and thickness for a comfortable grip. Generous enough for plenty of ice and spirit, it also works beautifully for iced tea or mocktails.

A stable base prevents wobbling, so you can relax and enjoy each sip.

Craftsmanship by Goun Maeda

With over 50 years of experience, Goun Maeda has dedicated his life to exploring crystal glazes. His passion for kiln chemistry and unwavering respect for traditional japanese ceramic techniques shine through in every glass.

Owner’s Comment

“When the light hits the glaze just right, you’ll see the crystals dance—turning your evening drink into a moment of art.”
— Masatoshi Yokoyama, KOTOPOTTER