All the current BreadPots are made out of a a brick red stoneware clay.
They are all about the same volume, they are made from the same amount of clay. There are variations in the shape, especially in the shape of the handles.
Inside some are painted with porcelain slip under the lid and a recipe and BreadQuote are incised through the slip using the sgraffito technique. Others are fired with sawdust inside, leaving a natural carbonization to alter the clay color.