– Contemporary tea bowl by Takeru Uwano featuring striking black crackle glaze – Oil-spot or tenmoku-inspired surface with fine geometric crackle pattern – Interior and exterior fully glazed in deep glossy black with subtle iridescence Summary: This is a contemporary tea bowl (chawan) by Japanese ceramic artist Takeru Uwano (上野猛, Uwano Takeru). The piece showcases a distinctive black glaze with a fine crackle pattern covering both interior and exterior surfaces. The glaze exhibits characteristics reminiscent of tenmoku or oil-spot glazes, with tiny crystalline or textured effects that create visual depth. The bowl's form is classical – gently rounded with smooth walls and a balanced profile suitable for tea ceremony use. Uwano's approach reflects a contemporary interpretation of historical Japanese glaze traditions, celebrating the interplay between glossy surface, textural crackle, and the transformative power of high-temperature firing. This bowl appeals to collectors of modern Japanese ceramics, tea ceremony practitioners, and those drawn to the quiet drama of monochrome glazes. Takeru Uwano is a contemporary Japanese ceramic artist working within the tradition of studio pottery. While specific biographical details may vary, his work reflects a deep engagement with historical glaze techniques – particularly iron-rich glazes associated with tenmoku and black-glazed wares. These traditions trace back to Chinese Song dynasty ceramics and were adopted and refined in Japan during the medieval and early modern periods. Black-glazed tea bowls hold particular significance in the tea ceremony, where their dark interiors provide a striking contrast to the bright green of whisked matcha. The crackle effect (貫入, kan'nyū) is a prized characteristic, resulting from differential contraction rates between clay body and glaze during cooling. Over time, tea stains may settle into the crackle lines, deepening the bowl's character – a phenomenon celebrated as "nurturing" the vessel. This bowl presents a refined, symmetrical form with gently curving walls that rise from a stable foot ring to a smooth, slightly everted rim. The proportions are balanced, neither too shallow nor too deep, allowing comfortable handling and use. The black glaze is applied evenly across all surfaces, achieving a lustrous, almost mirror-like finish. Upon closer inspection, the glaze reveals a fine crackle pattern – a network of tiny lines creating a subtle geometric texture. This crackle may also exhibit oil-spot or crystalline effects, where microscopic variations in glaze chemistry create shifting tones of blue-grey or iridescent brown under changing light. The interior showcases the same treatment, creating a continuous visual experience from rim to foot. The firing process for such glazes is demanding. High temperatures (often cone 10 or above, around 1,280–1,300°C) are required to achieve the glaze's glossy surface and crackle effect. The iron-rich glaze body reacts with kiln atmosphere – particularly in reduction firing – to produce the deep black colour and subtle surface variations. The crackle pattern develops during cooling, as the glaze contracts faster than the clay body, creating controlled fractures. This is not a flaw but a desired aesthetic outcome, valued for the texture and visual interest it provides. Over time, with repeated use in tea ceremony, the crackle lines may deepen in colour as tea tannins settle into the fissures, creating a unique patina. In contemporary interiors, this bowl functions as both functional teaware and sculptural object. Displayed on a low table, shelf, or within a tokonoma alcove, the glossy black surface catches light, while the crackle texture invites closer inspection. The monochrome palette harmonises with minimalist décor, natural wood, and neutral textiles. Used in tea ceremony, the bowl becomes a vessel of ritual and contemplation, its dark interior framing the vibrant green of matcha. For collectors of Japanese ceramics, this piece represents the ongoing dialogue between historical glaze traditions and contemporary studio practice. Condition: The bowl appears to be in excellent condition with no visible chips, cracks, or structural damage. The glaze crackle is an intentional aesthetic feature, not a defect. Please review the images carefully for condition details. Shipping & Handling We ship worldwide via DHL or EMS with full insurance and tracking. Professional packing ensures safe arrival; combined shipping available for multiple wins. Local customs duties are the buyer's responsibility. Seller Guarantee We specialise in authentic Japanese ceramics and guarantee this piece's authenticity. Questions welcome – we reply within 24 hours.