A method for preparing solid materials is described. One aspect of the
method includes the steps of providing a mixture comprising an organic
material in a blend of a solvent and non-solvent for the organic
material, distributing the mixture into either droplets or granules, and
evaporating the solvent and non-solvent mixture to form particles having
an average size of from about 0.5 .mu.m to about 5000 .mu.m.