Ceramist's blog
How to formulate a glaze, read a pyrometric cone, choose between oxidation and reduction, calculate Seger UMF. No mystification — dry, practical writing.
July 18, 2026 · 5 min read
Keramoslab's AI for generating, importing and editing glaze recipes has been upgraded to Claude Sonnet 5, Anthropic's latest model. What improves, what stays deterministic, and pricing.
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July 18, 2026 · 9 min read
Understand the chemistry behind crackle glaze, how to adjust the crack network by modifying oxides and cooling rate, and the real food-safety warning.
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July 18, 2026 · 8 min read
Tenmoku glaze cone 10: saturated-iron chemistry, kaki break at the rim, critical thickness, and cooling. Base recipe, UMF, and bench tests.
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July 18, 2026 · 6 min read
Learn what pyrometric cones measure, the difference between cone 06 and cone 6, which to choose for your clay body, and why the kiln's pyrometer isn't enough.
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July 18, 2026 · 7 min read
How kiln atmosphere transforms the same oxides into completely different colors. Iron, copper, cobalt, and the celadon effect explained.
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July 18, 2026 · 7 min read
Why celadon needs reduction, how much iron to use, the 4-3-2-1 base recipe, the importance of thickness, and common mistakes that leave it yellow, washed-out, or muddy.
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July 18, 2026 · 9 min read
The molar unity formula (Seger UMF) explained without heavy math. Why it exists, how to read RO/R₂O₃/RO₂, and how to use it to diagnose glaze defects.
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July 18, 2026 · 8 min read
Practical step-by-step guide: raw materials, percentages, cone, atmosphere. Covers empirical method, Seger UMF validation, and using AI to speed up the process.
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July 18, 2026 · 6 min read
How to chat with an AI to swap raw materials, adjust percentages, and validate glaze chemistry in real time — no more Excel for cone, atmosphere, or SiO₂/Al₂O₃ ratio tweaks.
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July 18, 2026 · 7 min read
What makes a truly matte glaze — not just underfired. Two chemical routes to matte at cone 6, target UMF chemistry, a base recipe to test, and food-safety considerations.
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July 18, 2026 · 6 min read
Without test records, your memory turns into a year-old recipe. Learn to log photos, cone, atmosphere, layers and notes to build real knowledge about your glazes.
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July 6, 2026 · 8 min read
Learn why your transparent glaze crazes, how to adjust thermal expansion with oxides, and how to test clay-glaze fit before firing.
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July 6, 2026 · 8 min read
Barium matte glaze substitution: understand barium leaching risk, why to switch to strontium carbonate, and how to adjust the recipe in practice.
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June 27, 2026 · 8 min read
Understand shino glaze chemistry: feldspathic base, carbon trap in reduction, orange-peel texture and pinholes. Base recipe for cone 9–10.
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June 23, 2026 · 8 min read
Engobe and glaze: understand the chemical differences, application stages, shrinkage matching, and when to use each in your ceramic practice.
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