Many newcomers to purple clay Teapots often have a misconception about the clay: they tend to believe that the finer the clay, the better. We've previously discussed the issue of mesh size in our articles, and today we'll delve into it again.
Is it true that the finer the clay for a Purple Clay Teapot, the better?
First, we need to understand the concept of mesh size for the purple clay. Originally a mineral, the purple clay goes through several processes to become clay, one of which involves grinding and sieving the minerals.
The mesh size of the sieve used is what we refer to as the mesh size of the purple clay, indicating the size of the particles. Common sizes include 24, 32, 40, 60, 80, and 100 mesh.
The smaller the mesh size, the coarser the clay particles; conversely, the larger the mesh size, the finer the clay particles.
The mesh size also affects the sandy texture of the finished product after firing. A lower mesh size results in a more prominent grainy texture, while a higher mesh size yields a smoother surface with less sandiness.
Both extremely coarse and fine sands present high challenges in the making process. The most common purple clay teapots are made with 40 or 60 mesh clay, which strikes a balance between smoothness and texture. These clays have the highest firing success rates and produce a good luster after being used and cared for over time.
The belief that finer clay is always better is actually a misunderstanding.
The term “purple sand” itself emphasizes its granular nature. Clay that is too fine lacks the desired sandy feel, which detracts from its beauty. The sandy texture is an essential feature that distinguishes purple clay from porcelain, imbuing it with a rustic charm.
When ground, the same piece of purple clay will yield both fine and coarse particles. After sieving with different mesh sizes, the clay is sorted by its mesh size.
When a craftsman makes two teapots of the same design using both coarse and fine clay, it doesn't mean that the finer clay Teapot is necessarily better.
Some people prefer the rugged and antique look of teapots made from coarse clay, while others appreciate the delicate and elegant appearance of those made from finer clay. These preferences are entirely subjective, each type having its own unique characteristics.
It's also important to note that the breathability of a purple clay teapot is primarily determined by the nature of the clay itself. When the difference in mesh size is not significant, the impact on breathability is minimal.