What You Need to Know
The heating step gelatinizes starch and solubilizes pectin, which improves foam stability. Soy lecithin acts as a surfactant, forming micelles that stabilize air bubbles. Rapid freezing locks the emulsion structure, preventing collapse.
The Science
Primary Reaction
Gelatinization of starch and solubilization of pectin; emulsion formation by lecithin surfactant