Overfired Polar Ice porcelain. This bowl fired with an oval-shaped rim and was sticking to the shelf.
|Media||A 3-minute Mug with Plainsman Polar Ice|
Warping happens during the firing of ceramic ware when there is a high degree of vitrification or a shape is unstable. But warping is expected in translucent ware, it is just a factor that must be compensated for.