Why must gelatin be soaked in cold liquid for them to absorb water?

Gelatin must be soaked in cold liquid to allow its granules to properly hydrate and swell before being dissolved. When placed in cold water, the gelatin absorbs moisture, expanding its structure and ensuring an even distribution of the gelatin when heated. If added directly to hot liquids, gelatin can clump together, resulting in an uneven texture. Soaking in cold liquid promotes optimal dissolution and a smooth final product.