EN
Anylysis and evaluation of methods to modelling the kinetics of drying vegatables and fruits within first drying period. Mathematical models of fruit and vegetable drying kinetics are very often the models of second drying period, where the process is affected only by internal moisture diffusion in dried product. Such models are theoretically groundless and wrong with respect to methodology. Paper presents some example of the models which - despite of their relatively close agreement with results of measuring moisture content variation in samples being dried - are not grounded theoretically.