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Step-by-Step Tutorial
PRACTICAL WALKTHROUGH · PARAMETERS · COMMON MISTAKES
Idli steaming combines lactic‑acid fermentation of a rice‑and‑dal batter with steam‑based gelatinization to produce a light, fluffy steamed cake.
Origin: South Indian peoples (Tamil, Kannada, etc.) (6th–7th century CE) — South India
See full technique reference →During lactic‑acid fermentation, Lactobacillus species lower the batter pH from ~6.5 to ~4.5 and generate CO₂ that leavens the batter, increasing its volume by ~30 %. When the batter is steamed at ~100 °C, starch granules gelatinize at ~90–95 °C and proteins denature, forming a porous, airy matrix that sets the crumb.
Primary Reaction
Lactic acid fermentation by Lactobacillus producing lactic acid and CO₂
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