Technique

Steaming

Steaming: gentle, even heat that keeps moisture and shape. Dumplings, fish, custards and vegetables, with seasoning added before and after.

Steaming: gentle, even heat that keeps moisture and shape. Dumplings, fish, custards and vegetables, with seasoning added before and after.

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Questions from the pass

Steaming: frequently asked

How long does it take to steam a whole fish like sea bass?

For a 500g whole sea bass, steam over rapidly boiling water for 8 to 10 minutes. The internal temperature must reach 60°C. Season the cavity with ginger, spring onion, and light soy sauce before steaming, and finish with hot sesame oil immediately after cooking to release the aromatics.

How do you prevent steamed custards from becoming watery or full of bubbles?

Keep the steamer lid slightly ajar to lower the internal temperature to around 85°C. High heat causes the egg proteins to over-coagulate and squeeze out water. Cover the ramekins with foil to stop condensation dripping in, and steam savoury dashi custards gently for 12 to 15 minutes.

How do you stop dumplings sticking to a bamboo steamer?

Line the bamboo basket with perforated greaseproof paper, reusable silicone mesh liners, or cabbage leaves. Ensure the water is at a rolling boil before placing the steamer basket on top. For raw pork and prawn dim sum (har gow), steam on high heat for exactly 6 minutes.

Should you season vegetables before or after steaming?

Season brassicas like broccoli or pak choi immediately after steaming to prevent salt from drawing out moisture during cooking, which causes wilting. For root vegetables, toss in salt and emulsified butter before steaming at 100°C for 8 minutes to ensure the seasoning penetrates the dense starch.

When should a commercial kitchen use high-pressure steaming over atmospheric steaming?

Use high-pressure steaming at 120°C for dense root vegetables, pulses, and brassicas to cut cooking times by up to 70% while preserving colour and vitamin C. Use atmospheric steaming at 100°C for delicate proteins like lemon sole, chicken breast, or dim sum, where intense pressure ruins the texture.

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