One Vessel, A Thousand Kilns: The Production Process of Dehua Ceramic Cat Bowls and Dog Bowls
Dehua, in Fujian Province, was awarded the world's first "World Ceramic Capital" by the World Crafts Council in 2015. Its white porcelain — famed in Europe since the Ming and Qing dynasties as "Blanc de Chine" ("China White") for its jade-like quality and exceptional whiteness — has long been cherished worldwide, and the Dehua porcelain firing technique has been listed as a national intangible cultural heritage. Today, this thousand-year-old kiln fire also warms the pet dining table. A seemingly ordinary cat or dog bowl travels through six stages and dozens of processes, tempered in the kiln more than once at temperatures exceeding a thousand degrees Celsius, before it emerges warm and jade-like. The production flow is roughly as follows.
I. Clay Preparation: Fine Clay Makes Fine Porcelain
Dehua's secret begins with its clay. The local high-quality kaolin is extremely low in iron, rich in potassium, and high in silica with low alumina content — naturally suited to producing porcelain of exceptional whiteness and translucency.
Traditionally, water-powered stamp mills are used: water wheels drive pestles up and down to pound the porcelain stone into fine powder, which is then sieved, washed, settled in ponds and thickened in separate basins. After impurities are removed, the clay is piled up for aging. Aging often lasts from a month to a full year, allowing the clay to ferment and mature, greatly improving its plasticity, workability and stability. Finally the clay is kneaded and stored for use. Modern factories use ball mills for grinding and vacuum pug mills for de-airing, following the same principles as the ancient method.
II. Prototyping and Mold Making: One Vessel, One Standard
With clay in hand, a "standard" must come first. Pet bowls may look simple, but their design is thoughtful: cat bowls should be shallow with wide bases to avoid whisker stress from touching the rim; dog bowls should be deep, and slow-feeder bowls need raised ridges inside to prevent gulping.
The craftsman first shapes a master model out of clay — conceiving, molding, polishing and finalizing the form — then divides the shape into sections to cast plaster molds. The molds are dried and assembled, ready for use. The seams and curves of the plaster mold directly determine whether the rim is round and the body lines are smooth.
III. Forming: Slip Casting and Roller Forming
Forming is the heart of the entire process, with three main methods:
Slip casting: prepared clay slurry is poured into a plaster mold; the plaster absorbs water and a body forms against the mold wall. This suits the curved surfaces of cat bowls, the deep bodies of dog bowls, and the raised ridges inside slow-feeder bowls — making it the most common method for pet bowls.
Roller forming: a rotating clay blank is shaped by a roller tool, ideal for mass-producing regular round shallow bowls with high efficiency and dense bodies.
Hand shaping and wheel throwing: mostly for premium custom pieces — one bowl, one form, with extra craftsmanship.
IV. Trimming and Drying: Details Show the Craft
After demolding, the body still carries seams and burrs. The craftsman scrapes seams, trims the rim, and cuts the foot ring, then wipes and re-wets the surface to make it smooth and clean. The body is then air-dried naturally before controlled drying in a drying room. This stage tests patience most: uneven moisture can warp the rim or crack the body, and whether the foot sits level is decided here.
V. Bisque Firing (Optional)
Some products are first bisque-fired at 800–900°C to burn off organic matter and strengthen the body, so that glazing is more even and painting does not bleed.
VI. Glazing: The Key to the Jade-like Finish
Glazing can be done by dipping, pouring or spraying. Dehua white porcelain traditionally uses a glaze made from natural plant ash — a potassium-calcium glaze that is even, lustrous, and fused seamlessly with the body. For pet bowls, the glaze must also meet food-grade standards: lead-free and cadmium-free. After firing, the surface should be smooth and dense, so it does not trap dirt and is easy for owners to clean daily.
VII. Decoration: Adding Charm for Furry Friends
On the glazed body, craftsmen can hand-paint underglaze motifs such as cat paw prints and dog bones, apply decals or prints, or add gold tracing, reliefs, or even engrave the pet's name — many owners today order custom bowls engraved with their furry companion's name.
VIII. Glaze Firing: Tempered at 1300°C
Once decorated, the body enters the kiln (traditionally packed in saggers) and follows a complete firing curve of heating, soaking and cooling, peaking at up to 1330°C. At high temperature the glaze fully vitrifies and fuses with the body, producing the signature warm, jade-like quality of Dehua white porcelain. The kiln atmosphere also affects the color: under oxidizing conditions the glaze takes on an ivory tint; under reducing conditions it runs toward a greenish "scallion-root white."
IX. Unloading and Quality Inspection: Checked at Every Level
After the kiln opens, the ware is first graded by color, then each piece is inspected for warping, pinholes, crazing and kiln debris. Dimensions and weights are spot-checked, and finally the feet are ground and the pieces cleaned. Defective pieces are rejected on the spot and never reach the market.
X. Assembly and Packaging
Qualified products move to the finishing stage: anti-slip silicone rings are fitted to prevent pets from pushing or tipping the bowl over and to protect floors; large dog bowls are often paired with wooden or metal raised stands to protect the pet's neck; and two-bowl sets combine a food bowl with a water bowl. Finally, each piece is re-checked, packed with protective cushioning, labeled and shipped.
A pet bowl may look ordinary, but it travels through dozens of processes — clay selection, mold making, forming, trimming, glazing, decorating and firing — and is transformed in kiln fires exceeding a thousand degrees. It carries on Dehua's thousand-year "China White" heritage while answering modern pet-keeping needs for safety, durability and beauty. The kiln fire never dies; neither does the craftsman's heart.
