EHS Ceramics Home
Course length: one semester
Instructor: Mr. Clagett
Myth: Clay artwork explodes in the kiln for any reason whatsoever.
Mythbuster: When pieces reach the boiling point of water (212 degrees f), and the moisture cannot escape the walls, from being too thick or trapped cavities, then the piece will explode. It is not random. Essentially water moisture expands into a volatile gas (explodes) at the boiling point.
The sure fix: 1. Keep all claywork consistent in thickness and less than 1/2 inch thick. 2. Allow pieces to dry slowly based on thickness and climate.