|Monthly Tech-Tip |
These are not cracks. They do not go through to the inside. During forming the clay was folded over itself rather than compressed against the mold.
Laminations because of improper pugging of a clay body will cause separations and drying cracks in the ware.
Jiggering is a process of forming pottery that employs a spinning plaster mold and a tapered template to press soft clay or porcelain against it.