Table 4 shows the percentage of shrinkage and rehydration of shrimp using the 2 drying methods. The drying temperatures had an insignificant effect to percentage of shrinkage value conversely to percentage of rehydration. The percentage of shrinkage of both sizes of shrimps was between 11.45 and 32.36 %. Percentage of rehydration of shrimps also was between 3.01 and 13.08 %. These results imply that the effect of drying using infrared radiation has no relation to these qualities.