Abstract: A method for pressing salts in roll presses having one pair of rolls driven in synchronism, the roll surfaces being profiled, in particular ridged or honeycombed, where the salt is fed into the nip between the rolls by filling screws. The method includesa. feeding the material to the press at a temperature above 120.degree. C. in the nip of the rolls,b. pressing carried out with a specific press force at least equal to 4.5 t/cm,c. the circumferential velocity of the rolls being between 0.55 and 0.75 m/sec,d. the surface of the rolls being maintained at a temperature below 80.degree. C.