Abstract: An apparatus for and method of drying agglomerated moist particulate material, the particles of which when dry have a very low density. Drying is effected by supporting the material on a screen within a retainer, and by applying heat to the material in contact with the screen by way of an electrical or heat exchange type heating element. Vaporized moisture is extracted by way of a vent which extends upwardly through the retainer from a position adjacent the screen, so that the vapour is caused firstly to flow down through the screen and then upwardly through the vent.