Qiuku and Hot Water Bottles: How China Stays Warm in Winter

The most reliable family argument in China is not about money, marriage or politics. It is about whether you are wearing enough.

The subject is qiuku — the close-fitting thermal trousers worn under everything else in winter — and the argument has a standard shape. A mother or grandmother insists. A younger person refuses, on the grounds that it is not actually that cold. The older person wins, eventually, and usually by continuing to ask.

It is the Chinese version of a universal exchange, and it says something about how winter is handled here: not by heating the room, but by heating the person.

Qiuku: The Warmest Argument in China

Qiuku translates literally as “autumn trousers” — a layer that historically went on in autumn and stayed on until spring. In English the nearest equivalent is long johns, or thermal underwear.

Two things make the garment more interesting than it looks.

First, it is a layer, not an item of outer clothing. Chinese winter dressing works by accumulation: a thermal layer against the skin, then ordinary clothes, then a thick coat over the top. The coat keeps the wind out; the layer underneath keeps the warmth in. Neither works properly alone.

Second, it is culturally loaded. Insisting that someone wear qiuku is one of the recognised ways older relatives express affection, and refusing it is a recognised way younger ones assert independence. The garment has become a national joke precisely because everybody has had the conversation.

There is a phrase attached to the ritual worth knowing: your mother thinks you are cold. It is used to explain any instance of someone being over-dressed, and it is said with affection.

North and South

The gap between how the two halves of China experience winter explains a great deal.

In the north, buildings have central heating. The official season usually runs from mid-November to mid-March, and indoor temperatures are high enough that people wear T-shirts at home in January. Outside, it may be minus fifteen. Life is organised around going between two temperature zones, which is why northern coats are serious and northern interiors are light.

In the south, there is no central heating, and winter is comparatively mild but wet — often between zero and ten degrees, with high humidity. That combination is unpleasant in a specific way that dry cold is not. Rooms are cold, floors are cold, and there is nowhere to escape to. A popular joke in the south says that people there get through winter on willpower alone.

The practical consequence: qiuku, hot water bottles and electric blankets matter most in the south, where they cannot be avoided by going indoors.

Hot Water Bottles and Sun-Dried Quilts

The household equipment of a Chinese winter is cheap and specific.

The hot water bottle. Rubber, filled from the kettle, and put in the bed twenty minutes before getting in. This is the classic solution, and it remains in use even where electric heating exists, purely because it works.

The hot water bottle’s ancestor. A tangpozi — a copper or ceramic flask, filled with hot water and used as a bed warmer. Now a vintage object, occasionally still found in the houses of grandparents.

Heat patches. Nuantaotie — single-use patches that warm slowly once exposed to air, worn against the skin inside a shirt. Japanese in origin, and now thoroughly adopted in China.

The quilt, and the practice of airing it. Chinese bedding is thick, and on any sunny winter day you will see quilts hanging out of apartment windows to air. The result — a smell that Chinese calls the smell of the sun — is a small seasonal pleasure with no English equivalent.

The electric blanket. Common in the south, usually used to warm the bed before sleeping rather than all night.

Eating Your Way Warm

Chinese winter food does not need a special menu, because the seasonal pattern already points the same way: long cooking, rich broth, and heat.

Ginger tea is the standard home drink on a cold evening — ginger steeped in hot water, sometimes with brown sugar. It is a household custom rather than anything more, and it is worth describing in those terms.

Then there are the winter dishes. Hotpot, where diners cook their own ingredients in a shared pot at the table, belongs to the coldest months. Lamb soup appears in northern cities. Preserved meats and clay-pot rice are winter specialities in Guangdong. The general principle is the same one behind our piece on seasonal eating: cold weather cooking is slow, rich and shared.

Two Proverbs Behind It All

Most of the practical advice above is organised around two traditional sayings, both of which every Chinese child hears.

“Wrap up in spring, hold back in autumn” — 春捂秋冻. Do not shed your winter clothes the moment a warm spring day arrives, and do not add them at the first cold morning in autumn. The instruction is about gradual adaptation: give the body time to adjust, rather than switching abruptly between seasons.

“Cold starts at the feet” — 寒从脚起. Which is the reason that a hot foot soak, the subject of its own article here, is such a fixture of Chinese evenings in winter. Warm the feet, warm the person; the logic is folk rather than physiological, but the practice is pleasant regardless.

Both sayings are traditional guidance rather than anything else, and this site treats them that way. They are worth knowing because they explain the behaviour: why Chinese families argue about layers, and why a basin of hot water appears at nine in the evening.

What Is Worth Borrowing

If you live somewhere cold and expensive to heat, the Chinese approach has real practical value.

• Wear a layer, not just a coat. Thermal trousers and a close-fitting vest change how a winter feels more than a thicker jacket does.
• Heat the person, not the house. A hot water bottle, a blanket over the knees, and warm socks are cheap and immediate. They also follow you around.
• Air your bedding on sunny days. Ten minutes of sun on a quilt does more for a bed than most people expect.
• Drink something hot in the evening. Ginger, tea, or plain hot water.
• Warm your feet before bed. A basin of hot water for fifteen minutes, then straight into bed. This is the single most reliable Chinese winter habit, and the full routine is here.

Common Questions

Is qiuku just long johns? Effectively yes. The difference is cultural rather than physical — it is a garment with a family argument permanently attached.

Do people in the south really not have heating? Most homes do not have central heating, and rely on individual solutions: air-conditioning units that run in reverse, electric heaters, blankets and layers.

Is ginger tea a Chinese thing? Hot ginger with brown sugar is widely made at home when someone feels cold, and it is common across East Asia. It is a household custom rather than a formal tradition.

Why do quilts get hung out of windows? To air them. Sunlight and moving air dry and freshen bedding, and Chinese winters are dry and clear in many regions, which makes it practical.

What does “cold starts at the feet” mean in practice? It means the folk advice is always to warm your feet first. Whether or not the logic of the saying is correct, the habit it produces is a pleasant one.

Layers, Kettles and the Shape of the Season

Winter in China is handled with layers, small heat sources, hot drinks and a set of proverbs about adapting gradually. It is a low-tech system, designed for buildings that are cold and budgets that are limited, and it works remarkably well.

Try the two easiest parts this winter. Put on one more layer than you think you need, and warm your feet before bed. Neither costs much, and both are considerably older than central heating.

For the seasonal calendar this all sits inside, read the 24 solar terms. For the evening routine itself, see the art of foot soaking. The rest of our gentle habits live in the Wellness section.