What You Need to Know
During cooking, the starch granules absorb water and swell, rupturing their semi‑crystalline structure and forming a viscous matrix. The mechanical action of whisking disperses the flour particles, ensuring uniform gelatinization and preventing clumping. Precise control of temperature and time is essential to achieve the desired thickness without over‑ or under‑gelatinization.
The Science
Primary Reaction
Starch gelatinization