# What causes carbon coring in clays?

Page: https://stenobird.com/podcast/for-flux-sake-4156282/what-causes-carbon-coring-in-clays
Text version: https://stenobird.com/podcast/for-flux-sake-4156282/what-causes-carbon-coring-in-clays.md
Podcast: [For Flux Sake](https://stenobird.com/podcast/for-flux-sake-4156282)
Published: 2026-03-04T13:50:14+00:00
Episode link: https://forfluxsake.libsyn.com/what-causes-carbon-coring-in-clays
Audio file: https://traffic.libsyn.com/secure/forfluxsake/For_Flux_Sake_Ep_124_3_4_26_V1.mp3?dest-id=2985164
Processing state: not_requested
JSON: https://stenobird.com/v1/public/podcasts/for-flux-sake-4156282/episodes/what-causes-carbon-coring-in-clays
Duration seconds: 2206

## Resource

What is carbon coring, and should we care about it? The term is actually a misnomer, with the real culprit being iron, a common ingredient in reduction fired clays. Today the gang talk about the phenomenon along with questions about kiln safety, and best studio practices for kids and pets. Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show. Are you coming to NCECA? Look for Matt and Rose at the Ceramic Materials Workshop booth and Kathy at the Harvard Ceramic booth in the expo hall. Hope to see you there. Have you checked out the new For Flux Sake Patreon? This is a great way to show your support and have access to discounted merch, live hangouts, and extra episodes. Head over to Patreon and sign up today. Today's episode is brought to you by Monkey Stuff , The Rosenfield Collection , Cornell Studio Supply , and Ceramic Materials Workshop's Making Glaze Make Sense . This week's episode features the following topics: Carbon coring, red iron oxide, black iron oxide, reduction, stoneware clay

## Actions

- request_transcript: `POST https://stenobird.com/v1/public/podcasts/for-flux-sake-4156282/episodes/what-causes-carbon-coring-in-clays/transcription-requests` — Idempotently request low-priority transcript generation for this episode.
- read_markdown: `GET https://stenobird.com/podcast/for-flux-sake-4156282/what-causes-carbon-coring-in-clays.md` — Read the agent-friendly Markdown representation of this episode resource.

A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed.

## Transcript

Full transcripts are not published on public pages unless there is a clear rights basis.