What You Need to Know
Aquafaba contains soluble proteins (~1.5 %), starches (~0.8 %), sugars (~0.3 %) and salts (~0.5 %), which enable it to form stable foams when whipped. Heating to 70–80 °C denatures the proteins, increasing viscosity and improving emulsion stability. Overwhipping or excessive heat causes protein aggregation, leading to foam collapse and loss of emulsifying capacity.
The Science
Primary Reaction
Protein denaturation and foaming