WHAT IS ORI-EN? ORI-EN is a Japanese craft brand that combines the advanced stainless steelmanufacturing of Tsubame-Sanjo with oxidation coloring techniques fromTakaoka, Toyama—methods originally developed for Buddhist metalwork.Each piece begins with precisely formed stainless steel, which is copper-platedand then treated with chemicals and controlled flame. This process allows thesurface to oxidize naturally, creating deep colors and organic patterns that cannever be exactly repeated. Because every step of the coloring is done by hand, no two pieces are thesame. The subtle variations in color and texture are not flaws, but a definingpart of the craft.ORI-EN brings these traditional techniques into modern, functional objectsdesigned for daily use. By using them in everyday life, the craft continues to its origins. FEATURES Double Wall Engineering: Designed with an advanced hollow insulation layer that perfectly preserves the temperature of your sake keeping it hot or cold much longer while staying completely comfortable to hold without exterior condensation. Single Wall Pure Design: Built with a thin-profile architecture that instantly transfers temperature, allowing the warmth or chill of the sake to interface elegantly with your hands and lips for a traditional, sensory tasting experience. Hand-Oxidized Artisanal Finish: The distinct, organic patina is achieved entirely by hand using controlled flame and chemical oxidation over a copper-plated base, ensuring that no two cups share the same color or pattern. Premium 18- 8 Stainless Steel: Forged from high-grade, stainless steel that is highly resistant to corrosion, completely shatterproof, and built to last for generations without changing the flavor profile of your fine sake. Ergonomic Traditional Profiles: Features classic curved and tapered Japanese sake vessel silhouettes, engineered to concentrate the delicate aromas and bouquet of premium sake variants. SPECIFICATIONS Double Wall Sake Cup Parameter Details Material 18-8 Stainless Steel(Oxidation coloring over copper plating) Structure Double wall structure Dimensions Diameter: 57 mm (2.2 in.)Height: 42 mm (1.7 in.) Weight / Vol. 53 g / Volume: 50 ml Available Models Blue , Copper Red , Antique Silver Single Wall Sake Cup Parameter Details Material 18-8 Stainless Steel(Oxidation coloring over copper plating) Structure Single wall structure Dimensions Diameter: 68 mm (2.7 in.)Height: 48 mm (1.9 in.) Weight / Vol. 44 g / Volume: 75 ml Available Models Blue, Copper Red, Antique Silver