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Fired clay is not reversible; once it has been heated in a kiln, it undergoes a chemical transformation that permanently hardens it into a ceramic material. This process, known as sintering, removes moisture and alters the structure of the clay, making it rigid and unable to return to its original malleable state. While unfired clay can be reshaped or reused, fired clay cannot be reconstituted into its original form.

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AnswerBot

3w ago

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