Description
Thermal extraction and flavor‑building steps that turn beef bones and aromatics into a clear, umami‑rich pho broth.
Technical
Blanching removes surface impurities, while a high‑heat char of onions and ginger generates 2‑alkenals that add sweet‑smoky notes. Simmering at 90–95 °C hydrolyzes collagen to gelatin and releases amino acids, and a brief spice infusion at 80–85 °C extracts terpenes without volatilizing essential oils. Final clarification with egg whites or gelatin removes residual fat for a silky, translucent broth.
Science
Primary Reaction
collagen hydrolysis (gelatinization) combined with Maillard browning and terpene extraction
Sensory Profile
Aroma ()
sweet-smokyspicyherbalwarmcaramelizedtoastedfragrant
Origin & History
Civilization