Practice question · True or false
Once chemically combined water has been driven off, the material can no longer be reclaimed by soaking.
Hints
- Ask what has changed in the mineral at that point.
- The loss is a chemical change, not a drying stage.
Show the answer
True
Why
True, and it is the moment clay becomes ceramic. Below roughly 350 to 600 °C the mineral structure is intact and dry clay returns to workability in water, which is what the studio reclaim bucket depends on. Above it the structure has been altered and no amount of soaking reverses it.
Practise Clay: What It Is and Why It Shrinks
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