Yixing Zisha Teapot Forming Techniques

Yixing Zisha teapots are mainly shaped by two hand-forming methods: slab rolling (cylinder beating) and slab joining. Both techniques have long been used to make functional pottery in Yixing with a centuries‑old history, and they have been refined to an exceptional level for crafting Zisha wares.

Tools for shaping Zisha teapots mainly include a clay workbench, wooden mallets, turntables, wooden beaters, bamboo beaters, compasses, flat clay knives, pointed carving knives, and burnishing tools. These are standard tools for making all types of Zisha clay bodies. Besides, a variety of custom small specialised tools are used according to the teapot’s shape and craft requirements.

1. Cylinder Beating Method

Round-shaped teapots are mostly made with the cylinder beating technique. First, artisans beat clay with a wooden mallet into clay slabs of uniform thickness, around 3 to 4 millimetres, adjusted according to the teapot size. Next, calculate the slab dimension based on the designed mouth diameter, factoring in firing shrinkage and pi, plus extra allowance for joining the two ends and the cylinder height. The clay slab is then cut into a rectangular strip.

Place the clay strip on the turntable and roll it into a cylinder, overlapping the two ends. Use a flat clay knife to make a single angled cut to trim the overlapping section for a tight fit, then bond the joint with clay slip. Clay slip is thick slurry made from the same clay mixed with water, working like mortar for bricklaying. Mark the joint to place the handle later, covering any possible seam left after firing.

Then put one hand inside the clay cylinder to support the inner wall. Hold a wooden beater in the other hand and tap the upper outer wall of the cylinder while slowly rotating it. The inner support and external beating compress the clay and gradually shrink the opening to the required size. Once the dimension is achieved, seal the top opening with a pre-cut round clay disc using thick clay slip.

Flip the clay cylinder upside down, beat and narrow the other end and seal it. The rough hollow teapot body is now finished.

After the cylinder takes shape, craft and attach the neck and foot ring. Take round clay discs of different thicknesses, matching the outer diameter of the neck and foot ring, and stick them to the top and bottom of the cylinder. Trim the outer edges of the mouth and foot ring, then rotate and cut with a compass to remove excess clay, leaving the clay blank for the neck collar and foot ring.

Make the spout, handle and lid separately. Use special shaping and trimming tools made of horn, bamboo and wood to repeatedly press, carve and refine all lines and transitions, creating sharp edges and smooth contours.

The inner side of a Zisha teapot lid has a wide, straight seat. The outer diameter of the seat must fit closely and rotate smoothly inside the teapot mouth.

When attaching the handle and spout, locate the slab seam formed during cylinder beating. The handle is usually placed beside the seam, and the water outlet hole is pre-formed on the opposite side before joining the spout. The spout, handle and the vertical centre plane of the teapot body must align on the same cross-section.

At this stage, the clay blank is nearly complete. Polish the whole surface with burnishing tools until the blank is smooth as a mirror. Stamp the maker’s seal on the base and inside the lid. Let the clay body air dry, then send it to the kiln for firing.

2. Slab Joining Method

Square teapots, including four-sided, six-sided and eight-sided shapes, are primarily made with slab joining. Similarly, beat clay into slabs first, cut slabs following the design template, then assemble all pieces with clay slip to form a square clay box — the rough teapot body.

Then use tools to beat, trim and flatten the blank. Make and attach the spout, handle, lid and lid knob separately, before final fine detailing.

This slab beating process tightly compresses clay particles and organises the clay structure through physical force. Finished pieces have far greater strength and solidity than slip-cast wares.

High-quality natural raw Zisha clay features excellent plasticity and resists deformation during firing. This unique hand-forming technique allows artisans to precisely control dimensions while creating a wide variety of shapes. Almost any style of Zisha teapot can be handcrafted with proper design. When producing multiple pieces of the same model, shape, proportion and size can maintain high consistency.

In workshops, to streamline workflow, artisans commonly make four or six identical teapots as one batch.

Similarities and Differences Between Pottery and Porcelain

Both pottery and porcelain use clay as their core raw material. They share the same origin yet have distinct traits. Their base materials are similar, as an old saying states: refined pottery becomes porcelain.

Porcelain has a white body, is non-absorbent and translucent. Jingdezhen porcelain is famous for the description: thin as paper, white as snow, resonant as chime stones. Pottery is different. While white pottery exists, its whiteness cannot match porcelain. It absorbs water and is non-translucent.

Most porcelain is glazed, while most pottery remains unglazed. Zisha ware belongs to unglazed pottery.

Pottery and porcelain each have their own merits. Porcelain carries an elegant and noble style; pottery feels simple, warm and close to nature. Porcelain is like a refined lady, poised and graceful; pottery resembles a hermit from mountains, honest and rustic.

They are comparable to China’s eight major cuisines. Sichuan and Hunan dishes are bold and spicy, while Cantonese cuisine is light and fresh — all merely a matter of personal preference.

What matters most is genuine fondness. There is no point in ranking pottery and porcelain as superior or inferior.