Elasticity

Elasticity describes the rheological property governing a material’s ability to spring back to its original size and shape once a deforming force is removed, a defining trait of bread doughs, cheese curds, meat, and gel systems. The applied deforming force is termed stress and the resulting change in dimensions is strain; a body behaves elastically only below a threshold stress, beyond which deformation becomes permanent, and the point where irreversible giving begins is called the yield point. Cereal chemists measure dough elasticity to forecast machinability and loaf volume, dairy technologists follow it through cheese ripening, and texture analyzers quantify it against specifications. Distinguishing elastic recovery from viscous flow lets formulators engineer precise mouthfeel, from the chew of a bagel crumb to the bounce of a surimi gel.