The effect of storage on the rehydration ratio and moisture content of uncoated and pectin coated dehydrated pineapple samples are shown in Fig. 2 and 3. Rehydration ratio decreased with increase in storage time and this phenomenon was observed in both coated and uncoated samples. This may be due to the fact that the dehydrated pineapple samples may have absorbed some amount of moisture from the atmosphere during the storage. Rehydration ratio of coated samples was more than uncoated samples during the entire storage period. This might be due to the coating layer formed outside the coated samples didn’t allow the moisture gain into the cuboid. As a result, the internal structure of the coated sample was not as modified as compared to uncoated sample, where the intake of moisture was more due to the absence of coating layer. Prakash et al. (2004) also observed the decrease in rehydration ratio with increase in storage time in dried carrots.