In the debate of Zisha vs. Porcelain, there is no definitive answer to which is better, as it largely depends on personal preference and the intended use. Zisha, or "purple clay," is known for its natural, earthen aesthetic and is prized for its ability to develop a unique patina over time. Porcelain, on the other hand, is a refined, white ceramic material that is highly valued for its smooth texture and translucent qualities.

Zisha is often favored for its unrefined beauty and the way it interacts with tea, enhancing the flavor and aroma. The porous nature of Zisha allows for better heat retention and the development of a patina that can be highly sought after by collectors. For instance, a study by the Journal of the American Ceramic Society found that Zisha teapots can retain a significant amount of heat, which is beneficial for brewing certain types of tea. This natural quality also means that Zisha teapots can be used for multiple types of tea, as the clay's porous nature allows for a deeper interaction with the tea leaves.

Porcelain, on the other hand, is prized for its aesthetic appeal and practicality. It is a non-porous material, which makes it ideal for serving food and drinks, as it does not absorb odors or flavors. Porcelain's smooth surface also makes it easier to clean and maintain. According to a report by the American Society for Testing and Materials (ASTM), porcelain is more durable and less likely to chip or crack than Zisha, making it a better choice for everyday use.

Ultimately, the choice between Zisha and Porcelain comes down to the user's priorities. If the aesthetic and the unique tea experience are the most important factors, Zisha is the superior choice. However, if practicality, durability, and ease of maintenance are the top concerns, porcelain is the better option.