A random tidbit from ZeroSpace, a work in progress.
A fabricator is a device which manufactures complex objects from component substances. The component substances are typically in liquid or powder form, and must be replenished periodically. General purpose fabricators typically have reservoirs of metal, ceramic, and synthetic polymer dust, while specialized fabricators use substances specific to their application. Medical fabricators, for example, use reservoirs of protein, calcium, phosphorous, nucleotides, and synthetic biomatter. Fabricators are commonplace throughout most of civilized space.
I imagine food fabricators have reservoirs of fat, salt, soylent, and spices.