What You Need to Know
During simmering, starch gelatinization occurs as granules swell at 60–70 °C, increasing viscosity and forming a cohesive matrix. The process concentrates free sugars while maintaining temperatures below 170 °C to avoid caramelization, and a brief fermentation step introduces mild acidity and flavor complexity.
The Science
Primary Reaction
Starch gelatinization and concentration of sugars during simmering