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firing above recommended cones for the clay

updated sun 11 jan 98

 

Cynthia Blau on sat 10 jan 98

Ron:
Your message about firing clay too high made me wince. I threw 17 large
dinner plates for a set for my daughter (the extra 5 so I could make
them match.)
She oo'ed and ah'ed when I gave them to her. Several months later she
called to tell me that l plate broke when she heated some food in the
microwave. How can that be?, I said. All of us potters are telling our
customers our work is "microwave, oven and dishwasher safe". The next
week another plate broke under the same circumstances. The next week
all she did was put an ear of corn from the steamer onto a third plate
and it cracked in pieces.
I went back to the supplier who told me that that clay was discontinued.
Apparently it didn't hold up under the cone 10-11 they had advertised
it. It sure was a pretty red color, though. By the way no offer was
made to compensate me. My daughter now has 9 plates to serve cold or
warm dishes on. And I buy my clay from a different supplier.
Cynthia Blau
Fairfax, VA (now in Highland Beach, FL for the winter)