As to the porous ceramic body, {HEAD ~ the total volume} of the pores having a pore radius of from 1.8 nm to 100 μm is {TAIL ~ about 0.25 cm3}/g or more, the mode of pore radius of the pores is from about 1 μm to about 6 μm and the packing density is from about 0.7 g/cm3 to about 1 g/cm3 