Germany · Porcelain making; Pigment preparation; Saxon heritage — Supplement
Meissener Unterglasurblau — Schmaltblau-Herstellung
A supplement record documenting the preparation of Schmaltblau — the specific Meissen cobalt underglaze formulation used for the Zwiebelmuster and other Meissen blue painting traditions (CRAFT-1170). Cobalt oxide for underglaze use at extreme temperatures (1350–1400°C) requires specific preparation steps that determine the fired color character: the purity of the cobalt source, the grinding fineness, the suspension medium, and the flux ratio all interact in ways that the Meissen pigment specialist reads through a test-tile firing sequence before authorizing any new batch for production use. This supplements CRAFT-1170 by documenting the upstream preparation quality that makes the painting-side color prediction possible.
Risk level: Stable · Same context as CRAFT-1170
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