On 17/03/2021 21:54, Chris Hogg wrote:
On Wed, 17 Mar 2021 21:43:41 +0000, Chris Green wrote:

Chris Hogg wrote:
On Wed, 17 Mar 2021 20:12:29 +0000, Chris Green wrote:


It doesn't have to be moisture making the plates lossy, any sort of
material that makes the pottery conductive will make them get hot.

Sure. Any suggestions?

Carbon in some shape or form, almost any sort of metallic impurity, etc.

But neither of those are found in tableware.


Not so sure, and certainly glazes can have metals in them
earthenware and stoneware clays are heavily adulterated with plenty of
metals like iron and manganese oxides

Pure kaolin clay may be less prone to heating I often heat my stonewatre
plates in the microwave


--
€œA leader is best When people barely know he exists. Of a good leader,
who talks little,When his work is done, his aim fulfilled,They will say,
€œWe did this ourselves.€�

ۥ Lao Tzu, Tao Te Ching