Drying vacuum impregnated fruits may cause undesirable changes. In particularly, fruits containing sugar required special drying methods to decrease the water content. For high-quality
products, it is essential to avoid drying methods with high temperatures and long drying times. Freeze drying (FD) is considered as a process that preserves quality characteristics; however it is a time-consuming process that requires high energy. In contrast air drying (AD) is a low cost procedure; however quality parameters such as flavor, color, nutrients, bulk density and rehydration capacity may be negatively affected