What You Need to Know
The process relies on protein denaturation, starch gelatinization, and tannin extraction. Saturated steam at ~100 °C causes collagen to denature and gelatinize starches in taro leaves, while tannins released from the leaves are neutralized by high humidity, resulting in a moist, flavorful dish with minimal Maillard browning.
The Science
Primary Reaction
Protein denaturation and starch gelatinization