Tofu – The White Gold of Chinese Cuisine

Tofu (豆腐, dòufu) is coagulated soy milk – a food that originated more than 2,000 years ago in China and today ranks among the most-eaten protein sources worldwide. Yet tofu is not merely a meat substitute: it is a cultural food in its own right, with hundreds of varieties from delicate silken textures to smoke-pressed slabs. In the Ingredients Overview of China Restaurant Yung, tofu holds a special place – ingredient, dish, and philosophy at once.

In TCM tofu is regarded as cooling (寒) and sweet (甘) – it clears heat, moistens dryness, and tonifies Spleen Qi. Modern nutritional research confirms: soy protein is complete and high-quality, isoflavones have hormone-modulating and antioxidant action, and the fat content is predominantly unsaturated. According to Michael Greger, tofu belongs to the cluster of daily-recommended legume proteins in How Not to Age. [Greger HNTA, „The Okinawan Diet“ Ch. 20]

ChinaYung Essence: Tofu is not emptiness – it is a mirror. It absorbs the flavours of the kitchen and gives them back with its own texture.

Nutritional Profile at a Glance

Botanical Source	Soybean (Glycine max), legume
Taste (TCM)	Sweet (甘), cooling (寒)
Organ Affinity (TCM)	Spleen (脾), Stomach (胃), Large Intestine (大腸)
Key Compounds	Soy protein (complete), isoflavones (genistein, daidzein), unsaturated fatty acids, calcium, iron
Protein	~ 8 g per 100 g (firm tofu)
Energy	~ 76 kcal per 100 g (firm tofu)
Notable Feature	Complete amino acid profile (all 9 essential amino acids present)

For more on protein quality and legumes, see our Health section.

Botany & Origin

Tofu most likely originated in the 2nd century BCE in China, possibly by accident through coagulation of soy milk with seawater. Legend ascribes the invention to Prince Liu An. From China tofu spread through Korea and Japan and across all of East Asia; today it is an everyday food in more than 30 countries.

The soybean itself (Glycine max) has been cultivated in China for at least 5,000 years. It belongs to the „five sacred plants“ of ancient Chinese agriculture. Tofu production: soak soybeans → grind → boil milk → coagulate with magnesium chloride, calcium sulfate, or acetic acid → press. The coagulant determines texture and mineral content.

Closely related in the fermented world: fermented tofu (腐乳, fǔrǔ), which develops an intense, creamy-savoury note through mould cultures – a character world of its own.

Key Health Effects – Science-Based

1. Complete plant protein: Tofu contains all nine essential amino acids in sufficient quantity. This is rare for plant foods – legumes are generally strong in lysine, which is lacking in grains. Soy protein achieves PDCAAS values (Protein Digestibility Corrected Amino Acid Score) comparable to animal sources.
2. Isoflavones – hormone-modulating plant compounds: Genistein and daidzein bind weakly to oestrogen receptors. At Western dietary intakes (1–2 tofu portions/day) no negative effect on hormone levels is documented; on the contrary, study populations with regular soy consumption show better cardiovascular markers. [Greger HNTA, „Preserving Your Hormones“ Ch. 34]
3. Bone health: Tofu produced with calcium sulfate is a meaningful calcium source (up to 350 mg/100 g). Isoflavones can additionally have a positive influence on bone density. More on this in our Health section.
4. Cardiovascular markers: Meta-analyses show that soy protein moderately reduces LDL cholesterol. The effect is real, even if not dramatic – more important is the substitution: tofu instead of processed red meat is a clear gain.
5. Satiety: High protein share + moderate energy density = good satiety-per-calorie ratio. Firm tofu in particular keeps one fuller longer than softer varieties.

Culinary Use – In the ChinaYung Kitchen

Tofu is among the most versatile foods in Chinese cuisine. Its texture ranges from creamy-soft (silken) to firm-meaty (pressed); its preparation forms are almost unlimited:

• Deep-fried: The golden crust forms at 170–180 °C. The interior stays soft, the exterior crispy. One of our most popular tofu dishes is fried tofu with salt and pepper – garnished with soy sauce and fresh spring onion when available, otherwise standard scallion garnish.
• Braised (mapo style): Soft tofu in a spicy sauce – chilli, fermented black bean sauce, ginger, and Sichuan pepper. The mouth-numbing sensation (māla 麻辣) is classical.
• Steamed: Silken tofu with a soy dressing, sesame oil, and scallion garnish – the gentlest way to eat tofu.
• Stir-fried in the wok: Firm tofu cubed, together with broccoli, carrots, and soy sauce – quick and balanced.

Restaurant note from Wai Wah Yung: The Cantonese principle for tofu is „let the silence speak.“ Build the dish around tofu, not on top of it – season delicately, then let aromatics like ginger and scallion carry the structure. Explore tofu dishes on our menu.

Synergies & Bioavailability

• Tofu + vitamin C sources: Iron in tofu is non-haem iron – its absorption is significantly increased by vitamin C. Bell peppers, broccoli, or fresh coriander as companions measurably improve iron availability.
• Tofu + fermentation: Fermented tofu has improved bioavailability of isoflavones through enzymatic activity and additionally contains probiotics. The flavour is markedly more intense.
• Tofu + sesame oil: The classical Chinese pairing – sesame oil adds aroma; fat improves the absorption of fat-soluble compounds from the dish.
• Tofu + ginger: Ginger is the natural companion – it neutralises the beany raw taste, activates digestion, and adds sharpness.

Preparation & Storage

Press before cooking: Firm tofu contains a lot of water – this causes heavy spitting in the deep fryer and prevents even browning. Pat dry for 30 minutes or press under a light weight – the difference is large.

Marinate: Tofu is a flavour sponge – 30–60 minutes in soy-ginger marinade transforms the taste completely. The longer, the deeper the seasoning penetrates.

Temperature when frying: Preheat the wok strongly. A cold wok = tofu sticks, absorbs oil, and becomes mushy. Avoid exceeding the smoke point – add sesame oil at the end, not as a frying oil.

Storage: Unopened tofu keeps in the fridge until its best-before date. Opened tofu: change water daily and consume within 3–4 days. Freezing is possible – texture becomes firmer and spongier (good for braising, poor for silken-tofu dishes).

Cautions & Contraindications

• Soy allergy: Soy is among the most common food allergens. Symptoms range from skin reactions to anaphylactic reactions in rare cases. Those with known soy allergy should avoid tofu.
• Thyroid disorders: Soy contains goitrogens that, in very high amounts, can affect the thyroid’s iodine uptake. With thyroid medications, observe at least 4 hours between tofu and medication intake.
• Oestrogen-dependent conditions: The data picture is complex. In oestrogen-dependent tumours, tofu consumption should be discussed with the treating physician – the blanket statement „soy is bad“ is not scientifically tenable, but individual factors matter.
• Uric acid / gout: Tofu contains moderate amounts of purines – with gout, watch the daily total purine balance.

Science & Tradition in Dialogue

The TCM classification of tofu as „heat-clearing“ has surprising scientific parallels: isoflavones in fact act anti-inflammatory and can reduce oxidative stress. The „spleen-strengthening“ principle of tofu is reflected in its high protein bioavailability and satiety – it literally nourishes.

What Western nutritional science long withheld from tofu – namely recognition as a complete protein – is today consensus. Michael Greger emphasises in How Not to Age that regular legume consumption (which includes tofu) is one of the most robust predictors of longevity across different cultures. [Greger HNTA, „What Do Centenarians Eat?“ Ch. 18]

In our Ingredients Overview, tofu stands alongside vegetable companions such as carrots and broccoli – together they form the basic scaffold of healthy Chinese cuisine.

Summary – White Gold, Every Day

Tofu is not a compromise – it is a conscious choice. Complete protein, heart-friendly fats, bone-relevant calcium, and all in a food that loves the wok, steamer, and deep fryer equally. Its adaptability to flavours makes it the universal companion of Chinese cuisine – from soup to crispy dish. Related ingredients: Broccoli · Carrots · Ginger · Lotus Root. Full overview: all ingredient profiles · Health section.

FAQ

Is tofu good for men?
Yes. The fear that soy protein lowers testosterone is not scientifically supported. Studies show no significant effect on sex hormones at normal consumption (1–2 portions/day).

Which tofu is the healthiest?
From a nutritional standpoint, firm tofu with calcium sulfate as coagulant is particularly nutrient-dense (more calcium, more protein per 100 g). Silken tofu is creamier, has more water and less protein.

Can I eat tofu every day?
Yes, for a healthy person without soy allergy or thyroid issues. 1–2 portions daily (150–300 g) are considered unproblematic and nutritionally sensible.

What does tofu taste like on its own?
Fresh tofu tastes mildly beany and creamy – often surprisingly neutral to Western palates. This neutrality is its strength: it is the white canvas on which the flavours of the dish shine.

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