Dry clay...my teacher has two, and sometimes three kilns. He will take
anything that comes free from the base board for a bisque fire. He
fires really low fire clay, and he candles it (?) over night, so the
bisque fire takes two days, whereas the glaze firings take one. I have
been taking classes with him over a three year period, and have not yet
seen anything major blow up. The only exceptions have been pieces which
were more than an inch thick.
Last week he fired a pot for me that was actually dry at the base but
the mulitiple orifices at the top were in various degrees of
wetness...and it all came out fine. Now to see how it glazed...will
find out tomorrow night.
Pouring Rain in Northern California