induced by rapid MWVD at high moisture evaporation rate. Surface
cracks appeared when the stress locally exceeded the failure
strength of dried berries. Presumably, the shrinkage of raw berries
was not uniform during MWVD and led to the formation of unbalanced
stresses. The tensile strength of raw berries was significantly
lower than their compressive strength, and surface cracks
were formed during MWVD due to tensile failure in the area where
stress was applied to the product.