Prior to the drying process the dryer was programmed at pressure (70 mm Hg upper and 56 mm Hg
lower), rotation speed of cylinder – 6 rpm, number of cycles – one cycle, amount of stages – three stage.
The temperature of pumpkins at the drying process reached not higher than +35±2ºC.
Drying conditions for processing of pumpkins in a vacuum microwave drier were used during the
current research: the first drying stage at 4 magnetrons – energy of 6720 kJ, the second stage at 3
magnetrons – energy of 2310 kJ and the third stage at 2 magnetrons – 714 kJ.