Soy Milk Congee | IDDSI Level 4 Dairy-Free High-Protein Congee

IDDSI Level 4 (Pureed) | 35 minutes | Easy | Dairy-Free

Congee — the slow-cooked rice porridge that sits at the centre of Cantonese breakfast culture — is already one of the most naturally dysphagia-friendly foods in the Cantonese kitchen. This version replaces the usual water or plain stock with unsweetened soy milk, adding plant-based protein and a subtle, clean umami depth that makes it more nutritionally complete than standard white congee. The texture, cooked low and slow until the rice breaks down completely, passes IDDSI Level 4 without additional thickening agents. Suitable for dairy-free patients, including those with lactose intolerance or dairy allergy.

Ingredients (2–3 servings)

Main:

• 80g jasmine rice (or short-grain white rice)
• 500ml unsweetened soy milk (unsweetened, ideally with at least 6g protein per 240ml)
• 300ml water
• 1/4 teaspoon fine sea salt
• 1/4 teaspoon sesame oil (to finish)

Optional enrichment:

• 1 teaspoon light soy sauce (to season; omit for lower sodium)
• 1 small slice fresh ginger (2cm piece), removed before serving

Optional toppings for serving (L4 compatible):

• 1 tablespoon silken tofu, scooped and stirred into the congee
• 1 teaspoon smooth ground peanut sauce (no lumps)
• A few drops of sesame oil

Method

1. Rinse rice under cold water twice; drain.
2. Combine rinsed rice, soy milk, water, salt, and ginger (if using) in a medium saucepan.
3. Bring to the boil over medium heat, stirring frequently to prevent the soy milk from scorching on the base.
4. Once boiling, reduce heat to the lowest setting; partially cover with a lid (leave a small gap for steam to escape).
5. Cook for 25–30 minutes, stirring every 5–7 minutes, until the rice grains have broken down almost completely and the congee has a smooth, flowing consistency.
6. Remove ginger slices if used. Stir in light soy sauce if desired.
7. Remove from heat; stir in sesame oil.
8. Allow to stand for 2–3 minutes (the congee will thicken slightly as it cools). Stir once more before serving.
9. Ladle into a bowl and add any optional toppings. Serve warm.

Texture Test

Syringe flow test: At serving temperature (55–60°C), pour a small amount into a 10ml syringe; release and observe. Correctly cooked soy milk congee should flow out slowly, not as a thin stream. Flow time should be between 10–30 seconds for 10ml (consistent with Level 4).

Fork / spoon test: A spoon pressed gently into the surface should leave an indent that fills slowly — the congee flows back, but slowly. It does not hold a rigid shape. If the congee is too thick (does not flow), add a tablespoon of hot soy milk and stir. If too thin (flows immediately like water), continue cooking for a further 5 minutes uncovered.

Consistency note: Congee thickens as it cools. If preparing in advance, it will need to be reheated with an additional 50–100ml liquid and re-tested before serving.

Safety Notes

⚠️ Temperature: Serve warm (approximately 55–60°C), not piping hot. Overly hot food increases the risk of oral burns and reduces the patient’s ability to control the bolus.

⚠️ Soy allergy: Soy is one of the 14 major allergens. For patients with soy allergy, oat milk congee (substitute an equal volume of unsweetened oat milk) provides a comparable dairy-free alternative.

⚠️ Soy and thyroid medication: Soy can reduce the absorption of levothyroxine (thyroid medication). If the patient takes levothyroxine, administer it at least 4 hours before or after a soy-containing meal. Confirm this with the prescribing physician.

Sourcing Outside Hong Kong

For international care kitchens and home cooks outside Hong Kong, Cantonese ingredients are widely available at East and Southeast Asian grocery stores:

• United Kingdom: Wing Yip (Birmingham, London, Manchester), See Woo (London), Loon Fung (London)
• United States: 99 Ranch Market (West Coast), H Mart (East Coast), local Chinatown grocers
• Canada: T&T Supermarket (national chain), local Asian markets
• Australia: Burlington Supermarket, Tang’s, local Chinese grocers in Chinatown precincts
• Singapore & Malaysia: Sheng Siong, NTUC FairPrice (Singapore); Tesco, Mydin (Malaysia)
• Online: Sous Chef (UK/EU), Amazon.com (US), Yami.com (US)

Key Cantonese pantry ingredients: East Asian grocers including Wing Yip (UK), H Mart (US/CA), T&T (CA), and Sheng Siong (Singapore) cover most items in this recipe.

If a specific ingredient is unavailable in your region, the recipe notes alternative substitutions in the Ingredients section. For dishes requiring fresh Cantonese-specific ingredients (e.g. preserved century egg, fresh rice noodle rolls), check with your local East Asian grocer before substituting — texture compliance for IDDSI levels may require specific products.

Nutrition

Approximately 180 kcal per serving (approximately 250ml), protein 8–10g (from soy milk), 28g carbohydrate, 3g fat. Soy milk provides all essential amino acids — a complete protein source — along with calcium (if fortified), iron, and B vitamins. This makes soy milk congee significantly more nutritionally complete than plain water congee. For patients needing calorie fortification, stir in 1–2 tablespoons of nut butter (smooth, no lumps) or 1 tablespoon of olive oil before serving to add 90–120 kcal without altering texture.

Cultural Note

Congee (粥 / jook) is one of the oldest and most culturally resonant foods in the Cantonese kitchen. Across the Pearl River Delta and throughout the Cantonese diaspora in Hong Kong and beyond, congee is what mothers make when children are sick, what grandmothers serve at dawn, what hospitals serve — rightly — as the gentlest of foods. Replacing the water or stock with soy milk is a quiet modernisation that honours the dish’s purpose while improving its nutritional profile for patients who need every millilitre to count.