Drying time decreased considerably with increased microwave output power. Therefore microwave output power had a crucial effect on the drying rate. Compared to the hot air drying published elsewhere, microwave drying technique used in this study can greatly reduce the drying time of parsley leaves. By performing microwave drying at 900 W microwave output power instead of 30, 40, 50 and 65 1C hot air dying, the drying time up to the moisture content of 0