A process for producing a ceramic body (100), having selectively adjustable degrees of expression of one or more different physical properties, characterized in that the ceramic body (100) has a porosity to enable the control of a selective distribution of one or more chemical substances (101, 102) that are suitable for influencing the physical properties of the ceramic body (100), and in a first step, which is a loading step, the ceramic body is loaded with one or more solutions (104) of the one or more chemical substances (101, 102), and in a second step, which is a distribution step, the distribution of the one or more chemical substances (101, 102) within the porous ceramic body (100) is controlled, wherein a progression or a spatial progression of the degree of expression of the one or more physical properties can be produced and the one or more chemical substances (101, 102) are distributed within the ceramic body (100) by way of a convection flow, and wherein the control is effected by adjusting one or more ambient parameters (106) in an environment (108), and wherein a flow direction and a flow rate are controlled by the selective creation of ambient parameter gradients (110), with respect to various surfaces (116, 114) of the porous ceramic (100).