Sticky Rice Soak and Steam

1

raw glutinous rice — short-grain or long-grain glutinous; rinsed until water runs clear

1.5

cold water for soaking — enough to submerge rice by at least 5 cm; more is fine

20–25 min

steam time — measured from the moment steam rises vigorously through the basket

Rinse glutinous rice 3–4 times until water is nearly clear. Cover with cold water (at least 5 cm above rice) and soak 4–8 hours at room temperature, or overnight in the refrigerator. Drain and transfer to a bamboo basket, cheesecloth-lined steamer insert, or a conical Thai khao niao steamer. Steam over rapidly boiling water for 20–25 minutes, flipping or stirring the rice once at the 12-minute mark. Rice is done when translucent throughout and grains cling together but do not stick to fingers.

• If rice is still chalky-white in the center after steaming, the soak was too short — re-cover and steam 5 more minutes.
• Never cook sticky rice in an absorption pot like regular rice: excess surface water causes uneven gelatinization.
• Rinsing is essential — surface starch left on grains causes clumping into a solid mass rather than cohesive-yet-separate grains.
• After steaming, transfer immediately to a bamboo basket or wooden bowl; metal traps condensation and turns the bottom layer wet.
• Soaked grains keep refrigerated (in water) for up to 24 hours before steaming with no quality loss.

• Short soak (1–2 hours, hot water)

  Cover with hot tap water (~50 °C) to accelerate hydration; reduces active soak to 1–2 hours but can make grains slightly mushier

• Overnight refrigerator soak

  8–12 hours; fully hydrates, grains hold their shape best; preferred for mango sticky rice and lor mai gai

• Black glutinous rice

  Requires 8–12 hours soaking due to bran layer; steam 30–35 minutes

• Laotian khao niao

  Same ratio; steamed in a conical wicker basket (huad) over a deep clay pot; flipped once onto a flat bamboo tray midway

• Mango Sticky Rice (Coconut Milk to Rice)

  Cooked sticky rice is the base; dressed with a sweetened coconut milk ratio

• Lo Mai Gai (Glutinous Rice Fill Ratio)

  Steamed sticky rice forms the shell around filling in lotus-leaf parcels

• Rice to Water (Absorption Method)

  Regular jasmine rice uses absorption; glutinous rice bypasses absorption entirely

1. 1.Hot Sour Salty Sweet — Jeffrey Alford & Naomi Duguid, Artisan, 2000
2. 2.Simple Thai Food — Leela Punyaratabandhu, Ten Speed Press, 2014
3. 3.On Food and Cooking: The Science and Lore of the Kitchen — Harold McGee, Scribner, 2004

Confidence: high