The purpose of intermittency is to equalize the moisture distribution in dried products during
tempering periods (no heat supply) and thus to improve the efficiency of drying, as well as the product quality. As the intermittent
drying is associated with the modification of drying conditions, it
was decided based on previous experiments [27] to apply a shortlived cooling cycles. A stepwise changing air temperature with two kind of modes were tested, namely 5 min heating and 30 min cooling (5–30), and also 10 min heating and 40 min cooling (10–40).