Notable effects of infrared
radiation on foods were that it increased porosity of banana 60], increased rehydration potential of onion (Mongpraneet et al. 2002), reduced overall colour changes in pineapple
and potatoes in spite of high drying rates, gave
firmer-texture dried blueberries and did not compromise
on product quality when used in combination with
freeze drying, as in sweet potatoes , yam and strawberries.