Discussion
The slowest part of a firing schedule is usually
Answer: D
Correct answer: the early heating while binder and water leave
The early stage is the slowest because residual water, organic binders and lubricants must all leave through a body that is still relatively impermeable. Driving them off faster than the vapour and gas can escape builds internal pressure and bloats or cracks the ware, so the schedule creeps upward until that material is gone. The peak hold is usually measured in minutes and the early rise in hours.
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