A product isotherm is a graph showing how water activity changes as water is adsorbed into and desorbed from a product. Isotherms provide the specific data you need to:
Typical isotherms have limited usefulness because they contain fewer than a dozen points. Decagon testing labs use the new dynamic dewpoint method to produce hundreds of graph points for each isotherm. These high resolution isotherms give you a detailed picture of moisture interactions within your product.
The detail in a dynamic dewpoint isotherm lets you pinpoint process control points that affect shelf life and quality. It's like ripping the lid off so you can see exactly how formulation, packaging, and shipping decisions affect your product.
The lab will produce complete sorption and desorption isotherm curves for your product sample. You will receive the complete data set along with a detailed report of the findings.