What You Need to Know
The broth extracts alkaloids such as hydroxy‑alpha‑sanshool and capsaicin at 90–100 °C, while lactic acid bacteria from fermented bean paste lower the pH to ~5.5. Rapid boiling at ~120 °C promotes Maillard browning of meat proteins, and a 1 % starch slurry increases viscosity to emulsify oil and water phases.
The Science
Primary Reaction
Infusion of alkaloids and capsaicin into broth; Maillard browning of meat proteins; starch‑based emulsification of oil and water