What You Need to Know
Stir‑frying at 200‑250 °C initiates the Maillard reaction, generating melanoidins that contribute caramelized umami notes. Sous‑vide infusion at 60 °C hydrolyzes soy‑protein peptides, releasing free glutamate that amplifies savory perception. Controlled dehydration concentrates lactic acid from kimchi, lowering pH to ~4.5 and sharpening sourness.
The Science
Primary Reaction
Maillard browning, peptide hydrolysis, acid concentration