What You Need to Know
During drying, water is removed by evaporation, concentrating phenolic acids and tannins while reducing moisture‑dependent enzymatic activity. Controlled roasting at ~80 °C induces mild Maillard‑type browning that reduces tannin bitterness without significant loss of volatile acids, preserving the characteristic citrusy acidity.
The Science
Primary Reaction
Dehydration and mild thermal oxidation