air or hot water, to the product surface, after which the
heat flows inward from the surface to the center of the
product, as well as combinations of convective and radiation
heat transfer, have been extensively studied for controlling
insect pests in fruits [1–11] and grains [12–22].
Technologies for the rapid high temperature disinfestation
of grain have been available for many years; among these
technologies is the fluidized bed which has interested many
researchers [12–17] because of its great advantages in rapidly
promoting heat transfer and thorough mixing, leading
to uniform product properties. High temperature disinfestation
of wheat in batch fluidized beds apparently performed
very well, in completely killing all stages of insect
pests when grain reached maximum temperature, up
to 60–90 C [12,13,15]. Evans et al. [16] carried out