What changes to gelatin when moist heat is applied?

When moist heat is applied to Gelatin, it undergoes a process called hydration, where the granules absorb water and swell. As the temperature increases, the gelatin proteins begin to denature, unraveling and forming a gel-like structure. This transformation allows gelatin to dissolve and create a viscous solution that can set into a gel upon cooling. Ultimately, the application of moist heat alters gelatin's physical properties, enabling it to function effectively as a gelling agent in various culinary applications.