Description
Foam stabilization through mechanical protein unfolding and sugar crystallization.
Technical
Egg white proteins (ovalbumin, ovotransferrin) denature under shear forces, forming a protein network that traps air. Sucrose inhibits over-coagulation by competing for water molecules and increasing viscosity.
Culinary Significance
Creates light, crisp structures for desserts like vacherin or dacquoise, with distinct dry texture.
Science
Primary Reaction
Protein denaturation (non-thermal)
Parameters
Temperature
95°C optimal
80°C to 110°C range
Time
2 hours
1 hour – 3 hours
Equipment
Copper bowl (reduces sulfur bonding)Balloon whiskParchment paperConvection oven