(1) There are some glazes mixed in the raw mud.
(2) Raw slurry is used as the main raw material, and some flux materials, such as feldspar, talc or dolomite, are introduced.
(3) Add some organic additives or strong plastic clay into the mud, such as carboxymethyl cellulose, gum, sodium humate or rosewood.
(4) Adding a small amount of barren raw materials such as waste porcelain powder, plain porcelain powder or quartz powder into the mud.