The air temperature during intermittent drying ranged between
52 and 68 ◦C and between 44 and 66 ◦C on average, for modes 5–30
and 10–40 respectively. The aim of these studies was to examine the
relation between pretreatment (OD and UDOD) and variable drying
conditions. For cherry samples dried at changeable air temperature the time of drying was 395 min for mode (5–30) and 423 min
for mode (10–40) on average. Because the second process lasted
longer, it was decided to perform further tests with shorter cooling cycles only. Fig. 2 shows the drying curves and the temperature
plots for drying in changeable conditions with and without osmotic
dehydration (AD (5–30), ODAD (5–30) and UDODAD (5–30)).