Eytons' Earth: Natural & Alternative Medicine

[mahamahaart]

Dear all:

I am a potter with very little technical knowledge about clay.

My pots don't often crack or explode during bisque but lately, the Professor is new and most of the clay used were recycled. Surprisingly, most of them explode during the bisque. Any idea as of the cause?

I am wondering, am I in the right Forum?

thanks

mahamahaart