What You Need to Know
The alkaline pretreatment raises the corn pH to ~9, solubilizing hemicellulose and increasing calcium availability, which enhances starch swelling during heating. At 85‑95 °C the starch granules gelatinize, releasing amylose and amylopectin into the liquid. Optional cacao introduces polyphenols that can bind to starch, slightly increasing viscosity and adding antioxidant properties.
The Science
Primary Reaction
Starch gelatinization (and secondary Maillard reactions with extended cooking)