Since, the retention time and power consumption are inversely correlated with the effectiveness of drying, the lower scaling values were assigned to the higher retention time and power consumption values. The scaling process was conducted by assuming each attribute is equally important, since the weight of each attributes will be depended on various factors such as sensory attributes, perception on quality parameters of people in different geological context, and cost of production, availability of energy, and etc. Total score was calculated based on this scaling method for each mode at each temperatures.