Description
Rapidly freezes fruit purées to –196 °C using liquid nitrogen, producing sub‑10 µm ice crystals that preserve texture and color.
Technical
The extreme temperature drop causes water in the puree to crystallize almost instantaneously, limiting ice crystal growth to less than 10 µm. This minimizes cell rupture and preserves the smooth mouthfeel. Additionally, the rapid temperature change inactivates polyphenol oxidase, preventing enzymatic browning.
Science
Primary Reaction
Rapid freezing of water to ice (H₂O(l) → H₂O(s)) with minimal crystal growth; thermal denaturation of polyphenol oxidase (PPO)
Sensory Profile
Aroma ()
frostycleansubtle fruitcrisprefreshingvibrant
Origin & History
Civilization
Molecular gastronomy pioneers