A porous glass material having uniform pore channels includes: a framework; and multi-directional interconnected pores connected to one another by pore throats. The pore throats have an average diameter of 25 to 45 micrometers. Sizes of the pore throats are distributed across a range of 5 to 60 micrometers. The sizes of more than 50% of the pore throats are distributed across a range of 20 to 45 micrometers.