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Manufacturing Processes

Ceramic Production in China: From Chaozhou Kilns to Your Shelves

CN Ally Team·March 17, 2026

China's ceramic industry runs from Chaozhou's mass-production kilns to Dehua's porcelain workshops. Here's how ceramics are made, where each hub specializes, the food-safety limits that matter, and how to vet a factory.

Ceramic production in China is concentrated in four manufacturing hubs. Chaozhou in Guangdong runs mass-volume daily-use tableware, Dehua in Fujian makes white porcelain and giftware, Jingdezhen in Jiangxi focuses on premium and artisan porcelain, and Liling in Hunan produces everyday porcelain with underglaze decoration. The standard process: clay bodies are slip-cast, jiggered, or pressed, bisque-fired, glazed, and fired again at around 1,200–1,300°C. Decoration is decal-printed (cheap, consistent) or hand-painted (slower, variable).

This guide walks through the process, compares hubs and decoration methods, covers lead and cadmium limits, and gives MOQs, lead times, and a factory-vetting checklist.

One caveat: glaze chemistry, kiln curves, and food-safety testing are invisible in supplier photos. Buyers without staff on the ground often use CN Ally's product sourcing service to match factories to the product and order size.

How are ceramics made in a Chinese factory?

Raw materials are prepared into a plastic clay body, shaped in molds, fired once into porous "bisque," coated in glaze, and fired again at high temperature so the glaze melts into glass. Everything else — the forming method, the number of firings, the decoration — is a variation on that skeleton. Knowing it helps you read quotations and trace quality problems to their source.

Body forming: slip casting, jiggering, and pressing

Chinese tableware factories form pieces with one of three methods, chosen by shape.

Method · Typical products · How it works

  • Slip casting: Mugs, teapots, vases, hollow bowls · Liquid clay (slip) is poured into plaster molds. The plaster draws water out, building a clay shell against the mold wall; excess slip is poured off and the mold opened once the shell stiffens.
  • Jiggering / jollying: Plates, saucers, shallow bowls · A shaped template presses plastic clay against a rotating plaster mold. Fast and repeatable: most dinner plates are made this way.
  • Pressing: Tiles, thick-walled dishes · Powdered or plastic body is compressed in steel molds under high pressure, giving the dimensional consistency tile production demands.

Upstream of all three, the routine is the same: the clays and minerals are mixed wet, passed through magnetic separators to pull out iron particles, then filter-pressed to remove water. That magnetic separation step is small but telling: iron contamination shows up later as black specks in white glaze, and careful factories don't skip it.

Drying, bisque firing, and glazing

Freshly molded pieces dry, get trimmed smooth, then enter the bisque firing at roughly 900–1,000°C, which burns out organics and leaves a porous body that takes glaze evenly. Rushing the drying is a classic source of cracking: trapped moisture turns to steam in the kiln.

Glazing is usually done by dipping or spraying. The glaze is a slurry of glass-forming minerals; the porous bisque absorbs the water and leaves an even coating. Thickness control matters: too thin looks washed out; too thick runs or crawls in the second firing.

The final high-temperature firing

Glazed pieces go back into the kiln for the glost firing, typically 1,200–1,300°C for porcelain, lower for earthenware and some stoneware. The heat vitrifies the body, fusing clay particles into something glass-like and non-porous, while the glaze melts into a smooth coating. Large factories use gas-fired tunnel kilns for consistent volume output; smaller shops use batch shuttle kilns.

Which Chinese cities produce ceramics — and what each does best?

Chaozhou for volume tableware, Dehua for white porcelain and giftware, Jingdezhen for premium and artisan pieces, Liling for decorated everyday porcelain. Match the hub to the product before you start requesting quotes.

Hub · Province · Known for · Best for buyers sourcing…

  • Chaozhou: Guangdong · Daily-use porcelain, sanitary ware, art ceramics. Industry research describes it as China's largest export base for daily porcelain and sanitary ware, with 5,000+ manufacturers selling to 160+ countries. · Mass-volume tableware, OEM/ODM programs
  • Dehua: Fujian · White porcelain ("blanc de Chine"), crafts, tea sets, planters. Local government figures reported by Xinhua in 2026: 4,000+ firms, about 76 billion yuan of annual output. · White porcelain tableware, giftware, decor
  • Jingdezhen: Jiangxi · The historic "porcelain capital." Artisan studios and premium hand-finished porcelain; per Sixth Tone, its industrial output fell behind the coastal hubs as workshops stayed small and handmade. · High-end, artistic, or hand-finished lines
  • Liling: Hunan · Daily-use porcelain and underglaze color decoration; a long-standing national porcelain hub alongside Dehua and Jingdezhen. · Decorative tableware with colored patterns

A Chaozhou factory tooled for 100,000-piece decal runs will struggle with a 2,000-piece hand-painted order, and a Jingdezhen studio won't hit Chaozhou unit prices. When a supplier says "we can make anything," its location tells you what it actually makes well.

Decal printing vs hand-painting: which decoration should you choose?

Choose decals for identical pieces at volume and low unit cost; choose hand-painting when craft is the selling point and you can price in piece-to-piece variation. Many private-label programs land in between: decals for the main pattern, a hand-painted accent band.

Decals (water-slide transfers) are screen-printed with ceramic pigments, slid onto the surface, and fired on in a third firing around 750–850°C. A well-formulated decal is dishwasher-durable. The economics: artwork and screen setup is a fixed cost, so unit cost drops fast with quantity, but sheets are printed in runs, which pushes MOQs up.

Hand-painting splits in two. Underglaze painting goes on the bisque before glazing, Liling's signature style, and is extremely durable. Overglaze painting goes on top of the fired glaze and wears like decals. Here cost is mostly skilled labor per piece, scaling with coverage and detail.

Decal printing · Hand-painting

  • Appearance: Identical on every piece; fine lines and photographic detail possible · Visible brushwork; slight variation piece to piece
  • Cost structure: Setup cost + low per-piece cost; cheap at volume · Skilled labor per piece; cost rises with detail
  • Typical MOQ: Higher (sheets printed in runs) · Can be lower; artisans work piece by piece
  • Consistency: High · Lower; write acceptable variation limits into the spec
  • Durability: Good when properly formulated and fired · Underglaze: excellent; overglaze: comparable to decals

For food-contact pieces, decoration also interacts with safety testing: pigments sit in or on the glaze, and the lip-and-rim zone of cups and mugs gets stricter limits in several regulatory frameworks.

What lead and cadmium limits apply to ceramic tableware?

For cups and mugs sold in the US, the FDA allows no more than 0.5 mg/L (ppm) of lead and 0.5 ppm of cadmium to leach during the standard acid-soak test. The EU and California set their own thresholds, several stricter than the FDA's. If you're importing tableware, get lab test reports for your actual market, not the factory's assurance that the glaze is "lead-free."

Lead has long been used as a glaze flux, which lowers the melting point and boosts gloss, and cadmium produces vivid reds, oranges, and yellows. In a properly formulated, fully fired glaze, both stay locked in the glass matrix. The risk comes from underfired or poorly formulated glazes, where acidic foods like tomato sauce or vinegar pull metal ions out of the surface; dishwasher abrasion and cutlery scratches accelerate the same process.

The FDA's limits come from its ceramicware compliance policy guides (CPG 7117.06 for lead, 7117.07 for cadmium) and scale with how much food contact the piece gets:

Category · Lead limit · Cadmium limit

  • Cups and mugs: 0.5 mg/L · 0.5 mg/L
  • Small hollowware (bowls, etc.): 2.0 mg/L · 0.5 mg/L
  • Large hollowware: 1.0 mg/L · 0.25 mg/L
  • Pitchers: 0.5 mg/L · 0.25 mg/L
  • Flatware (plates): 3.0 mg/dm² · 0.50 mg/dm²

These are leaching limits, not content limits: the lab measures what migrates into a 4% acetic acid solution, not how much metal sits in the glaze. That's worth knowing when a supplier hands you a "lead content" report that tested the wrong thing.

Beyond the FDA: the EU's 2005/31/EC directive sets its own category limits (e.g., 0.8 mg/dm² lead on flatware, 1.5 mg/L on the lip-and-rim area of drinking vessels), California's Proposition 65 effectively demands lower levels through its warning-label framework, and China's domestic standard is commonly cited as a 4% acetic acid soak with lead at or under 7 mg/L and cadmium at or under 0.5 mg/L. Health Canada's industry guide to glazed ceramic foodware regulations mirrors this category-based approach and is a useful reference for how regulators frame the problem.

The practical rule: require test reports from an accredited lab (SGS, TÜV, Intertek, or equivalent) covering lead and cadmium migration for the market you're selling into, and make the report a contract condition, not a post-shipment surprise. A factory that can't produce current reports on demand is telling you something.

What are realistic MOQs and lead times for ceramic orders?

For custom-decorated tableware, expect 500–1,000 pieces per SKU and 30–60 days of bulk production, with samples taking another 7–15 days first. Stock shapes with simple logos can go lower; fully custom shapes go higher on both. These figures come from 2026 industry sourcing guides for Chinese porcelain OEM programs and match what Chaozhou and Dehua factories actually quote:

Order type · Typical MOQ per SKU · Typical lead time

  • Development sample: 3–10 pieces · 7–15 days
  • Pre-production ("golden") sample: 10–30 pieces · 10–15 days
  • Bulk, digital inkjet logo: 300–500 pieces · 30–45 days
  • Bulk, decal-printed decoration: 500–1,000 pieces · 40–60 days
  • Bulk, custom shape + decoration: 1,000+ pieces · 45–60 days

Buyers routinely underestimate three things: sample fees are normal ($50–300, often credited against bulk), new molds add cost and weeks, and the quoted lead time starts at golden-sample approval, not at first contact. Add 30–45 days of sea freight. First inquiry to warehouse delivery: three to five months is realistic.

What production defects should your QC watch for?

Ceramics fail in predictable ways. Build the inspection checklist around these:

Crazing — fine glaze cracks from glaze and body shrinking at different rates. Gives bacteria a hiding place. Food-service buyers usually reject crazed pieces outright.

Pinholes — tiny holes where gas bubbles escaped during firing. A few scattered ones are normal on budget ware; clusters signal a glaze or firing problem.

Warping — plates that don't sit flat, usually from uneven drying or slumping in the kiln. Check with a straightedge or a spin test.

Glaze crawling — patches where glaze pulled back and left bare body exposed, often from dust or oil on the bisque. Exposed body on a food-contact surface is a reject.

Iron spots — dark dots in light glaze from iron contamination. The upstream magnetic separation exists to prevent these.

Decoration misregistration — decals applied off-center or wrinkled. Decide in advance what "acceptable" means: a millimeter of drift on a rim stripe is normal at volume; a visibly crooked logo is not.

Set an AQL per defect type before production and put it in writing: a cosmetic flaw on the back of a plate is not crazing on a food-contact surface. Without QC staff who know ceramics, third-party quality control pays for itself here. A container of warped dinnerware discovered at your warehouse is a total loss.

How do you vet a ceramics factory before placing an order?

Match the factory's specialty to your product, confirm it fires in-house, demand current food-safety test reports, and verify export documentation. Then audit before committing to volume. Five checks cover most of the risk:

  1. Specialty match. Ask what the factory runs most weeks of the year, not what it can theoretically make.
  2. In-house kilns and decoration. Outsourced firing adds a layer you can't control. Ask to see the kilns and the glost-firing temperature for your body type.
  3. Current test reports. Lead and cadmium migration reports from an accredited lab, less than a year old, for products like yours. "We can test after you order" is not a yes.
  4. Export paperwork on demand. Commercial invoice, packing list, certificate of origin, and a food-contact compliance certificate should be producible without a scramble.
  5. QC process and inspection access. Ask how the factory inspects before packing and whether it welcomes third-party inspectors. Resistance is a red flag where defects hide under glaze.

A formal factory audit before the first bulk order verifies all five in a day, including whether the "factory" on the video call does the actual work. Add one stop most buyers skip: the drying and glazing areas, not just the showroom. That's where inspection failures are born.

Ceramic sourcing questions, answered

Is ceramic tableware from China safe for food use?

Yes, from a factory that tests for it. Properly fired glazes lock lead and cadmium into the glass matrix, and reputable exporters test every run against FDA or EU limits. The risk sits with untested low-end ware: bright overglaze colors from workshops that skip lab testing. Get the accredited lab report before ordering, and make it a contract term.

What is a realistic minimum order for custom ceramic tableware?

For decal-decorated tableware, 500–1,000 pieces per SKU is standard at export factories. Digital inkjet can drop that to 300–500; fully custom shapes start around 1,000 pieces. Undecorated stock collections sometimes go as low as 100–300 sets. Below that, expect higher unit prices.

How long does ceramic tableware production take in China?

Plan on 7–15 days for development samples, then 30–60 days for bulk production once you approve the golden sample, longer for custom shapes needing new molds. Add 30–45 days of sea freight. From first inquiry to goods in your warehouse, three to five months is realistic.

Porcelain or stoneware — which should I source for a restaurant?

Porcelain is thinner, harder, and more chip-resistant at the rim, the standard for hotels and restaurants. Stoneware is thicker and more rustic, popular for casual dining. For high-turnover food service, vitrified porcelain is the safer default.

Can Chinese factories make fully custom shapes, or only decorate stock shapes?

Both, but they're different projects. Decorating a stock shape is the 500–1,000 piece, 40–60 day program. A custom shape means new molds and test firings, so MOQs rise to 1,000+ pieces and timelines stretch. If your design is close to an existing shape, ask to see the factory's mold library first.

Your next step: match the hub to the product

A simple decision rule: volume tableware with printed decoration: Chaozhou. White porcelain giftware or tea sets: Dehua. Premium or hand-finished lines: Jingdezhen. Decorated everyday porcelain: Liling. Then verify: current lead/cadmium test reports for your market, a golden sample approved in writing, and inspection criteria set before production, not after the container is packed.

Ceramics reward buyers who do this groundwork and punish those who choose on price alone. If you'd like help finding the right factory and running QC on the order, email hi@cnally.com with what you're sourcing.

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