What You Need to Know
Egg white proteins (mainly ovalbumin) unfold through mechanical shear, forming a viscoelastic network that traps air bubbles; sucrose inhibits over-coagulation by competing for water molecules.
Fundamental technique for light, airy desserts ranging from simple cookies to elaborate pavlovas, with texture variations controlled by sugar ratio and drying method.
Key Parameters
Temperature
90°C
60°C - 120°C
Time
1 hour (French)
15 min (Swiss) - 2 hours (Italian)
Equipment
Copper bowl (catalyzes disulfide bonds)Balloon whiskStand mixer with whip attachmentParchment paperOven with convection (for baked versions)
Steps
- 1.
Pavlova (Australia/NZ): Creates crisp exterior with chewy interior to support fruit
- 2.
Dacquoise (France): Provides structural layers in nut-enriched cakes
- 3.
Floating Island (France): Forms poached foam quenelles
The Science
Primary Reaction
Protein Denaturation (Mechanical)