TG was used to evaluate the distribution of moisture content in this study, which was divided into two states: bulk water and bound water. The bulk water was calculated by measuring the water loss around room temperature. The bound water was calculated by measuring the water loss above room temperature. Fig. 5 shows the water states for the VA64 and PVP Met granulates. The bulk water content in the VA64 Met granulates was 0.35% (volume of added water, 1.0%), and 0.34% (volume of added water, 1.5%), approximately the same despite an increase in added water from 1.0% to 1.5%. On the other hand, bound water content in the VA64 Met granulates increased from 0.11% to 0.21% with an increasing volume of added water. Tablet tensile strength also increased with increasing volume of added water, suggesting that the volume of bound water may have an impact on tensile strength.