Compaction and relaxation characteristics of single compacts produced from distiller's spent grain

► We analyzed the physical properties of distiller's spent grain compacts. ► Asymptotic modulus (EA) was used as a measure of rigidity of the compacts. ► There was a significant decrease in compressibility with the addition of solubles. ► The EA characterized well the compacts affected by pressures and moisture. ► But EA was unable to classify the compacts based on solubles for specific pressures.