NOVELTY - A substantially spherical biomass pellet, comprises heated and compressed particulate biomass.    USE - The substantially spherical biomass pellet is useful as a fuel.    ADVANTAGE - The substantially spherical biomass pellet is cost-effective, highly efficient and reliable.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are:    (1) a method for producing the substantially spherical biomass pellet, comprising heating and compressing particulate biomass in a substantially spherical mold so that a substantially spherical pellet is produced;    (2) a method of producing torrefied biomass, comprising: substantially separating the biomass from air; and heating the biomass to a temperature and for a duration sufficient for torrefaction; where torrefied biomass is produced in the substantial absence of oxygen;    (3) a method for producing a substantially spherical torrefied biomass pellet, comprising: compressing biomass in a substantially spherical mold such that air and other gases are forced out of the biomass, where the mold substantially encompasses the biomass; heating the compressed biomass in the mold at a temperature and for a duration sufficient for torrefaction of the biomass; optionally further compressing the biomass during heating; and further compressing the biomass after the duration for torrefaction; and    (4) a mold assembly for producing a substantially spherical biomass pellet, comprising: two or more mold faces, each face comprising a concave portion; at least one the mold face being moveable toward at least one other the mold face, the mold faces together forming a cavity; where movement of the one mold face toward the other mold faces compresses biomass into the cavity and substantially encompasses the biomass to produce the substantially spherical biomass pellet.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a mold and die assembly for making substantially spherical biomass pellets.    Assembly (10)    Die (12)    Mold (13a, 13b)    Mold faces (13c, 13d)    Shaft (14)    Cavity (16)    Arrow (22)