The total quantity of volatiles of fresh sweet basil, 32.1 g kg−1, decreased considerably during both CD and VMD, 14.4 g kg−1. The CPD-VMFD (40 °C and 360 W) was the best option for drying sweet basil, the time required was relatively short (≈250 min), and aroma quality was good according to instrumental data (total concentration of volatiles 16.7 g kg−1) and sensory data (high intensities of fresh and floral notes).