Clay: This refers to the body quality of the Purple Clay Teapot. Purple clay has distinctions in fineness, coarseness, and quality. A Teapot made from high-quality purple clay has a warm and lustrous color, ancient and simple. With proper use, such a teapot can quickly develop a lustrous sheen like that of a pearl.

Shape: This refers to the form of the purple clay teapot. When evaluating the artistic merit of a purple clay piece from the perspective of its shape, one must consider the originality of the form, cultural connotations, artistic expression techniques, and the requirement for a harmonious blend of function and artistry, achieving a perfect combination.

Craftsmanship: This refers to the quality of workmanship in a purple clay teapot. Every part of the teapot is completed through the combination of points, lines, and planes, including the body, lid, spout, handle, foot, and knob. According to the requirements of purple clay artisans, a point should be round when it needs to be, square when required, curved where necessary, or rough as needed, all strictly adhering to the specified standards.

Firing: This refers to the firing quality of the purple clay teapot. Generally, assessments are made based on the body quality, surface color, and texture effects. The “Yangxian Famous Pottery Record” states: Overfired, the clay becomes old-looking and unappealing; underfired, it remains immature and sandy.

Function: This refers to the teapot's functionality for brewing Tea. A superior purple clay teapot requires the lid to fit tightly with the mouth without any gaps, ensuring that water used to warm the pot does not seep into it during tea brewing. Additionally, the height of the teapot also serves different purposes; taller teapots with smaller mouths are suitable for brewing Black Tea, while shorter teapots with larger mouths are ideal for brewing Green Tea.

Decoration: This refers to the ornamentation on the purple clay teapot. This mainly includes inscriptions, engravings, and stamps. Key points of assessment include the elegance of the inscribed content, the appropriateness of the script and layout, and the neatness of the engraving technique.