What’s the history behind Orton cones unusual numbering system? | For Flux Sake Episode 112 @ceramicmaterialsworkshop
What’s the history behind Orton cones unusual numbering system? | For Flux Sake Episode 112  @ceramicmaterialsworkshop
Uploaded October 2025 | Updated September 2026, 2 weeks ago
Today’s episode starts with a trip to Materials Corner where the gang talk about the likely end of a favorite Kaolin for soda firing. They also answer listener questions about the logic behind orton cone’s numbering system, the cause of scumming in clay, and the lowest temperature that it's ok to store clay.

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🎙️Today’s episode is brought to you by:
Monkey Stuff (monkeystuff.com/)
The Rosenfield Collection (rosenfieldcollection.com/)
Cornell Studio Supply (cornellstudiosupply.com/)
Ceramic Materials Workshop (Makin (ceramicmaterialsworkshop.com/courses/making-glazes-make-sense.html)

For Flux Sake is hosted by Matt and Rose Katz of the Ceramics Materials Workshop along with Kathy King of the Harvard Ceramics Program. Together they answer your burning questions about clay and glaze. In each episode they answer listener submitted questions in a comical, but also insightful way. This show will have you laughing and learning about glaze chemistry the chemistry behind ceramics in no time. New episodes typically drop every 2 weeks.

#MaterialsCorner #HelmarKaolin #Ortoncones #scumming #winterizingyourstudio
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What’s the history behind Orton cones' unusual numbering system? | For Flux Sake Episode 112

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