What You Need to Know
The sealed environment maintains 90‑120 °C, allowing collagen to gelatinize at ~70 °C over 2‑4 h. Moisture‑rich conditions limit Maillard browning to the bottom where temperatures exceed 150 °C, creating a thin caramelized layer. Condensation concentrates sugars, amino acids, and volatile aromatics, enhancing umami.
The Science
Primary Reaction
Collagen gelatinization and localized Maillard browning