Description
A siphon forces nitrous oxide into a chilled liquid, where the gas dissolves and, upon rapid depressurization, nucleates fine bubbles that create a stable foam.
Technical
The technique relies on low temperature to maximize N2O solubility, appropriate fat content to provide surface‑active lipids, and optionally added proteins or hydrocolloids to increase viscosity and reduce drainage. Upon depressurization, dissolved N2O rapidly expands, forming fine bubbles that are stabilized by the interfacial film of lipids and proteins.
Science
Primary Reaction
Dissolution of N2O in liquid followed by nucleation of bubbles upon depressurization
Sensory Profile
Aroma ()
airybutterycreamysubtlewhipped
Origin & History
Civilization
Modernist cuisine movement
Era