The invention relates to a method for producing a biofuel from an aqueous mixture of carbonised biomass obtained by means of a method for the hydrothermal carbonisation of biomass, characterised in that it comprises: (a) grinding the aqueous mixture of carbonised biomass until a maximum size of less than 500 micrometres of the particles contained in the mixture is obtained; (b) applying a method for the physical separation of inorganic substances; and (c) reducing the moisture content until a water content of between 25 and 55 wt. % is reached. The invention also relates to the biofuel obtained by said method, and to the use thereof in various applications.