Drying is the process of removing liquid from solids
by evaporation. The drying process has been used
for thousands of years to reduce transport weight
and increase the storage life of numerous products
and materials. For centuries, drying meant spreading
a product out in the open air and letting the sun
provide the energy for water evaporation. With the
dawn of the industrial age, many different drying
processes have been developed to increase drying
speed and improve product quality and uniformity.