Also as expected, these drying times are longer for bed heights of 52 and 63 mm. The shortest drying time was obtained
for the bed height of 41 mm at all temperatures. Gogus and Maskan reported similar observations for thin layer drying
of olive pomace in a pilot plant tray dryer. On the other hand, these authors [12] observed that the effect of the layer thickness was not significant when the drying was performed in a microwave oven.