This disclosure concerns methods of fabricating porous ceramic supports and supported ceramic membranes, comprising mixing a ceramic powder, a clay powder and a binder to form a mixture, kneading the mixture in an aqueous or non-aqueous medium and a humectant to form a ceramic paste, and aging the ceramic paste for at least 24 h. The ceramic powder is about 70 wt % to about 80 wt % in the ceramic paste. The clay powder is about 5 wt % to about 15 wt % in the ceramic paste. The ceramic powder has an average particle size of about 5 μm to about 20 μm. This disclosure also concerns porous ceramic supports and supported ceramic membranes thereof.