One Hue Into Kiln, Thousands of Hues Out – The Thousand-Year Kiln-Change Aesthetics of National Treasure Jun Porcelain
News 2026-07-08 18
One Hue Into Kiln, Thousands of Hues Out – The Thousand-Year Kiln-Change Aesthetics of National Treasure Jun Porcelain
Thousand-Year Kiln Fire: The Full Evolution of Jun Porcelain
Originated in Shenhou Town, Yuzhou, Henan Province (ancient Junzhou), Jun porcelain gets its name from the Juntai Imperial Kiln of the Song Dynasty and ranks among China’s Five Great Song Kilns. An ancient proverb goes: Gold and silver have fixed prices, yet Jun porcelain is priceless; ten thousand wealth cannot compare to one Jun ware.
The prototype of Jun porcelain emerged in the Tang Dynasty, represented by Lushan splashed glaze pottery. Tang crafts dotted blue and white spots on black glaze to realize natural glaze gradient, laying the craft foundation for later copper-red kiln transmutation.
The Northern Song Dynasty marked the artistic peak of Jun porcelain. Emperor Huizong built exclusive Juntai Imperial Kiln for royal use under strict control. Kilns produced limited quantities yearly; qualified wares were sent to the palace, while defective pieces were smashed and buried to prevent civilian circulation. Craftsmen mastered core copper-red glaze technology, generating rose purple and begonia red over sky-blue base glaze, establishing Jun porcelain’s colorful tone system.
During Jin and Yuan dynasties, numerous folk Jun kilns spread across northern China. The ancient firing craft suffered interruptions in Ming and Qing dynasties. After the founding of New China, lost Jun porcelain techniques were fully restored. Today, Jun porcelain is frequently presented as national gifts overseas, becoming a world-class cultural symbol representing oriental natural aesthetics.
Unrepeatable Kiln Change: The Unique Soul of Jun Porcelain
“One hue enters the kiln, thousands of hues come out” is Jun porcelain’s iconic motto. Unlike other ceramics decorated by hand painting, all colors of Jun porcelain form naturally via chemical reactions under high kiln temperature.
Craftsmen add copper elements to glaze. Under high-temperature reduction atmosphere, copper, iron and silicon minerals intermix and diffuse, turning plain celadon glaze into rosy clouds, purple mist and layered mountain patterns. Even wares with identical clay bodies and glazes fired in the same kiln carry distinct color layers — this is the irreplaceable charm of unique Jun porcelain.
Ancient Jun porcelain bears a classic identifying texture: earthworm track cracks. Thick glaze shrinks and cracks repeatedly during firing, and melted glaze fills the crevices, forming winding lines like earthworm trails, a key marker for authentic Song Jun wares. Fish roe cracks, ice cracks and tear marks are also natural kiln textures.
Classic Jun glaze boasts rich layers: moon white and sky blue serve as plain base tones, while begonia red and rose purple are the rarest varieties. Interwoven blue and purple create poetic scenes of clear sky after rain and sunset mist, the most beloved aesthetic for ancient Chinese literati.
72 Ancient Procedures: Craft Tempered by Clay and Flame
A qualified Jun porcelain piece goes through 72 delicate procedures from raw mineral clay to finished ware, every step testing craftsmen’s experience and patience.
Body Making: Adopt exclusive local clay from Shenhou. Go through crushing, washing, long-term aging and repeated kneading, followed by wheel-throwing and precise trimming. Song imperial Jun wares feature thick, solemn lines, mainly flower pots, nail washers, vases and ornamental bottles.
Glazing: Jun porcelain adopts multi-layer thick glaze via repeated dipping. Only sufficient glaze thickness allows natural color flow and kiln transmutation under high heat.
Two-stage Firing: First biscuit firing to fix the clay body, then glaze firing to develop colors. Ancient firewood and coal kilns made success extremely rare. Modern gas kilns stabilize temperature control, yet perfect natural kiln change still relies on favorable weather, premium mineral glaze and seasoned craftsmanship.
Imperial Kiln vs Folk Kiln: Two Distinct Aesthetic Systems
Northern Song Official Jun Porcelain
Exclusively for royal families, with fine compact clay bodies and reserved, steady glaze without large bright color areas, mainly sky blue dotted with partial purple-red splashes. Numbers one to ten are carved at the bottom to match complete flower pot sets, delivering simple, elegant and restrained aesthetics.
Jun Folk Ware of Jin and Yuan Dynasties
Made of coarser clay with bold, interlaced blue and red glazes. Most wares are daily supplies such as bowls, plates and jars, full of down-to-earth charm, with far more surviving pieces than imperial Jun porcelain.
Coexistence of Ancient and Modern: Contemporary Revival of Jun Porcelain
Thousand-year Jun porcelain has evolved from royal collections into daily art. Modern craftsmen fully restore the jade-like texture of Song Jun while innovating vessel shapes and optimizing glaze formulas. Ornamental vases with mountain & cloud kiln patterns, auspicious beast sculptures and modern tea sets dominate collections and daily use.
A handful of native Yuzhou clay, a layer of copper-containing mineral glaze, and transformative high-temperature fire. The value of Jun porcelain lies not only in tough firing conditions, but also in capturing natural landscapes of sky, clouds and mountains within glaze, perfectly integrating random natural beauty and handmade craftsmanship.
Flames follow no fixed rule, no two glazes look identical. Spanning thousands of years, the exclusive kiln-change aesthetics of Jun porcelain represent unique oriental romantic art.
As an original brand focusing on intangible cultural heritage porcelain, we thoroughly study the 72 ancient Jun procedures and reproduce classic Song kiln-change glazes, while innovating vessel shapes to fit modern home decor, overseas soft furnishing and gift markets. Every Jun ware carries one-of-a-kind natural kiln patterns, encapsulating all natural scenery on tiny porcelain, delivering exclusive oriental aesthetics of China’s Five Great Song Kilns to global consumers.