What happens during the bisque firing?

The clay hardens permanently.

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  1. The glaze melts fully
  2. The clay turns back to mud
  3. The clay hardens permanently ✔

Why: The first firing causes chemical and physical changes that harden the clay permanently.

Huh, didn't know that: The first firing causes chemical and physical changes that harden the clay permanently.

The dad joke
Bisque firing is a permanent change.
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References

Answer: The clay hardens permanently. The first firing causes chemical and physical changes that harden the clay permanently.

  1. Pottery en.wikipedia.org/wiki/Pottery
    This firing results in both chemical and physical changes to the minerals of the clay body.
    Checked 2026-11-07.

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