What You Need to Know
Nitrous oxide (N₂O) forced dissolution under ~800 kPa pressure disrupts fat globule membranes via sudden depressurization, while shear forces from the siphon nozzle create micro-bubbles (<50μm) stabilized by protein-polysaccharide networks.
Enables airy textures in high-fat systems (e.g., foie gras foam) and prevents emulsion breakdown in acidic sauces.
Key Parameters
Temperature
4°C
2°C - 8°C
Time
2 hrs maturation
30 sec - 24 hrs (refrigerated)
Equipment
ISI or iSi whipping siphonN₂O cartridgesThermal immersion circulator (for temperature control)
Steps
- 1.
Burrata Cloud (Alinea, Chicago): Suspends cheese proteins in air matrix
- 2.
Wasabi Air (WD-50, NYC): Stabilizes volatile allyl isothiocyanate
The Science
Primary Reaction
Fat globule membrane disruption via adiabatic expansion