Gelatinization is the process by which starch granules absorb water and swell when heated, leading to the breakdown of their crystalline structure. This transformation allows the starch to thicken and create a gel-like consistency, commonly seen in cooking when making sauces, puddings, or baked goods. Gelatinization is crucial for achieving the desired texture and mouthfeel in many food products. The temperature and duration of heating significantly influence this process.