It is a traditional Japanese-style spouted matcha chawan (often referred to as a katakuchi), specifically designed for whisking matcha green tea and pouring it easily into cups without spilling. The aesthetic is heavily inspired by traditional Japanese stoneware techniques, showcasing a variegated reactive glaze that exposes the raw, rustic clay color near the base while fading into deep, forest-green earth tones along the rim. This spouted matcha bowl is primarily made from stoneware clay (ceramics). Here are the specific materials used to create it: • Stoneware Clay Base: A durable, coarse clay body fired at a high temperature. It provides a heavy, organic feel and helps retain heat during the tea whisking process. • Reactive Glaze Coating: A liquid glass coating infused with metallic minerals (typically iron or copper for these forest green and rusty brown tones). • Chemical Reaction: During firing, the minerals in the glaze melt and mix unpredictably. This creates the unique variegated patterns, shifts in color density, and glossy finish. Warm Your Water First: To protect the longevity of the bowl and prevent thermal shock, it is best practice to heat your water in a standard microwave-safe kettle or glass measuring cup first, then pour it into the matcha chawan.