What You Need to Know
Heating the blend between 120–150 °C for 5–10 min volatilizes essential oils (capsaicin, eugenol) and triggers Maillard reactions between sugars in cumin and amino acids in coriander, forming brown pigments and pyrazine aromatics. Controlled moisture loss (<5 %) prevents excessive bitterness from fenugreek and limits acrylamide formation.
The Science
Primary Reaction
Maillard reaction and thermal volatilization of essential oils