Lycopene can be considered as a valuable quality index for tomato products, and reports show that heating and drying of tomato products under different processing conditions to manufacture tomato powder may cause degradation of lycopene [5], [6] and [7]. Browning is the main cause of tomato quality degradation during drying and it was shown that the browning reaction rate of tomatoes during drying depends on product moisture, and critically on the product temperature and the rate of color formation increased as the intensity of drying process increased [8]. Glass transition temperature (Tg) is also a very important quality indicator in tomato powder, which is correlated to some physical changes such as flow-ability and cohesion in food powders. Studies showed that for the osmotically treated, air-dried tomatoes, measured glass transition temperatures were lower than those of the freeze-dried product due to incorporation of low molecular weight solutes [9]. Quality of dehydrated tomato powder was influenced by storage condition including packaging material during storage period, and subsequent storage of product in metalized polyester bags is suggested to protect product against light, oxygen, and humidity and retard the quality changes of tomato powder during storage period