Zisha (purple sand) clay is a unique, porous, iron-rich pottery material from Yixing, China, used to make unglazed teapots that enhance tea flavor over time. Renowned for its "breathing" properties due to a double-pore structure, Zisha absorbs tea oils and develops character with each use, making it ideal for brewing and deepening the complexity of your favorite teas. This 7-ounce teapot arrives with four matching cups, perfect for sharing or personal ritual. Each piece in this limited production run (1/36) reflects the artisanal craftsmanship of traditional Chinese pottery, offering both functional beauty and a vessel that improves with age.