The Aqualab Duo from Decagon Devices is able to measure food moisture content and water activity.
To measure moisture content using water activity requires an understanding of the relationship between the two parameters.
This relationship, referred to as the moisture sorption isotherm, is complex and unique to each product type.
It must be determined experimentally by measuring water content at several water activity values.
Decagon's Aquasorp isotherm generator can rapidly generate robust isotherms with good data resolution.
Once the isotherm has been generated, it can be loaded into the Aqualab series Duo and used to indirectly determine moisture content based on a water activity measurement generated by the Aqualab series Duo.
