A method of manufacturing articles, the method comprising: a step of mixing, during which particles of at least one substantially inert material, particles of at least one microwave opaque substance and particles of at least one organic binder are mixed with one another so as to obtain a mixture; a step of applying, during which said mixture is treated with microwaves so that the particles of the microwave opaque substance at least partially absorb the microwaves and dissipate energy in form of heat, which heats the binder so as to allow the particles of the binder itself to bind and constitute a matrix in which the particles of substantially inert material and the particles of microwave opaque substance are inserted; and a step of cooling, which is at least partially subsequent to the step of applying and during which the matrix is cooled, at least partially solidifying; the mixture comprising from 1% to 20% by weight, with respect to the total weight of the mixture, of a liquid, which does not react with the other components of the mixture in the conditions of the method and has a boiling temperature lower than 270°C; from 50% to 95% by weight, with respect to the total weight of the mixture, of the substantially inert material; from 0.1% to 25% by weight, with respect to the total weight of the mixture, of the microwave opaque substance; from 2.5% to 20% by weight, with respect to the total weight of the mixture, of the binder; the substantially inert material is such that its particles cannot bond to one another if placed in contact and subjected to a temperature of up to 200°C, at a pressure of up to 100kg/cm 2 and in absence of other elements; the microwave opaque: substance is a substance capable of at least partially absorbing microwaves and dissipating the energy thus absorbed in heat a step of mixing, during which particles of at least one substantially inert material, particles of at least one microwave opaque substance and particles of at least one organic binder are mixed with one another so as to obtain a mixture; a step of applying, during which said mixture is treated with microwaves so that the particles of the microwave opaque substance at least partially absorb the microwaves and dissipate energy in form of heat, which heats the binder so as to allow the particles of the binder itself to bind and constitute a matrix in which the particles of substantially inert material and the particles of microwave opaque substance are inserted; and a step of cooling, which is at least partially subsequent to the step of applying and during which the matrix is cooled, at least partially solidifying; the mixture comprising from 1% to 20% by weight, with respect to the total weight of the mixture, of a liquid, which does not react with the other components of the mixture in the conditions of the method and has a boiling temperature lower than 270°C; from 50% to 95% by weight, with respect to the total weight of the mixture, of the substantially inert material; from 0.1% to 25% by weight, with respect to the total weight of the mixture, of the microwave opaque substance; from 2.5% to 20% by weight, with respect to the total weight of the mixture, of the binder; the substantially inert material is such that its particles cannot bond to one another if placed in contact and subjected to a temperature of up to 200°C, at a pressure of up to 100kg/cm 2 and in absence of other elements; the microwave opaque: substance is a substance capable of at least partially absorbing microwaves and dissipating the energy thus absorbed in heat