During the first stage of the slow drying of a liquid within a bead pack, c
apillary liquid transfers dominate and are governed by the pore size distri
bution. Deep layers made of coarse grains can be invaded first by air and t
he drying rate is controlled by the characteristics of the layers close to
the free surface. (C) 1999 Academie des sciences/Editions scientifiques et
medicales Elsevier SAS.