You may be wondering what exactly happens to clay when it is fired material first let s talk about the chemistry of clay.
Prevent warping ceramics.
Making ceramics is a science.
Cracks particularly bottom cracks are more prevalent in bowls vases mugs and other upright pieces.
Clay is a natural.
Tiles and slabs will shrink while drying so use enough weight to hold them.
Cracking and or warping of pottery during drying or firing is a class of problems that frustrates almost every potter at one time or another.
It explains the idea of clay memory and how this affects the ceramic piece both through drying and.
Keep pieces away from the edge of the kiln.
You may even want to build moats around the piece to ensure even drying.
Use the right clay body.
This might require experimentation but some bodies just warp a lot more.
This time delay video demonstrates how a flat piece of drying clay can warp if bent while wet.
While both cracking and warping plague tiles plates and other flat pieces.
Porcelain is especially difficult to throw without warping.
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The better you understand the technicalities of the process the easier it will be for you to prevent accidents such as cracking and warping.