Hence, for better quality of heat sensitive products such a svegetables and fruits, microwave vacuum drying (MWVC) is applied. This method combines the advantages of microwave and vacuum drying. Products dried by the microwave vacuum method produce a more porous and uniform structure as compared to those which have undergone hot air drying. This isdue to volumetric pressure developing inside the product from the microwaves and the low boiling point of water under vacuum helping to dry the food at a low temperature.The pros of MWVC are also improving thequality of the dried product, increasing the energy efficiencyof the drying processes, enhancing the drying rate anddecreasing the creation of hot spots on the surface of the product ( reporteda reduction in drying times of mint leaves under microwavevacuum drying by 85–90% compared to hot air drying. Theapplication of MWVC in producing oil-free durian snacks wasproposed by Lin et al. (1998). Bai-Ngew et al. (2011) reportedthat durian chips dried by the microwave vacuum method canreach a fat content some 90% lower than that produced by HAdrying. Moreover, the texture and structure are similar to thefried durian chips produced commercially. Low oxygen levelsin the MWVC help prevent oxidation and produce a dried product with more lightness andcrispness, but less hardness and shrinkage compared to hotair drying