Description
Rapid freezing of a dairy foam with liquid nitrogen creates a stable, airy emulsion.
Technical
The process freezes the aqueous phase at –80 °C to –196 °C while high‑speed shear traps fat droplets within a partially denatured protein matrix, forming a micro‑emulsion. The extreme temperature gradient prevents fat crystallization and limits protein denaturation, yielding a low‑density foam with enhanced stability. Precise control of nitrogen flow and exposure time is essential to avoid over‑freezing or splatter hazards.
Science
Primary Reaction
Phase change (freezing) coupled with mechanical shear leading to emulsion formation
Sensory Profile
Aroma ()
coldmilkysubtleneutralfreshcleandelicate
Origin & History
Civilization