Emulsion templating is a fabrication route in which the dispersed droplets of an emulsion define the voids of a porous solid after the continuous phase is consolidated and the droplets are removed ^[1]. In the most common variant the continuous phase is a monomer mixture that is polymerised around a high-internal-phase emulsion, giving a porous polymer whose void fraction mirrors the droplet volume fraction ^[2]. Pore diameter follows droplet size, and interconnecting windows arise where adjacent droplets touch and the film between them ruptures during polymerisation or drying ^[3]. It is distinguished from porogen leaching by the fluid, deformable character of the template, which allows void fractions above three-quarters without collapse of the framework ^[1].