Can you drink Shanghai tap water?

The straight answer: not undrinkable, just not drunk

Shanghai’s tap water is treated and is drinking water, which needs saying, because visitors picture it as worse than it is. The other half is just as true: locals do not drink it straight. They boil it at home, drink from a dispenser at work, buy bottles when out, and nobody fills a glass from the tap. So the point is not that the water is poisonous, but that this is not the local habit, and you need not be the exception.

The distinction earns its keep. Calling the water dangerous makes a first-time visitor needlessly afraid to brush their teeth with it or eat a washed vegetable; deciding your stomach is strong and drinking it anyway bets a trip on something that need not be bet. Water is not the enemy, but boiling it costs nothing.

What people do, and where the water comes from

Boiling is the ordinary practice: a kettle at home, poured into a thermos, drunk through the day. Restaurants bring hot tea or hot water rather than iced water, the same habit extended.

What a visitor meets more often is bottled water: convenience stores, supermarkets, street shops and hotel desks all sell it cheaply, and it is what most people actually drink here. A few bottles are usually already in the room and the desk will send more. A kettle in the room is close to universal, budget hotels included. Glance inside first; a little scale is normal, and if you would rather not, boil bottled water. Some hotel lobbies also have a water dispenser you can use.

Ice, salad, and trouble that is usually not water

Ice in a proper restaurant is generally made from filtered water, since the machine is plumbed into a filter, so the ice is generally fine and a cold drink needs no interrogation. A street stall is a different calculation: the ice may come from elsewhere and the washing water may not be filtered. The question is not whether ice in China is safe, but who made this glass.

Raw vegetables work the same way. Salad and cold dishes are washed in tap water, a low risk rather than no risk. Anyone with a sensitive stomach, travelling with children, or taking stomach medicine can go easy on raw cold dishes and let hot food carry the meal: a cheap trade.

One honest note: what most often upsets a visitor’s stomach in Shanghai is unfamiliar food, oil, chilli, broken sleep and tiredness, not the water; treating every mouthful as a suspect misses the target.

Children, refills, coffee, and one sensible rule

For formula, boil bottled water and let it cool; the least fretful method. The room kettle works, and pouring away a first kettle before the second reassures.

Refills. Shanghai has no public drinking fountains as some countries do, so ask: a hotel lobby, a front desk or a cafe will usually fill a bottle, especially if you bought something. Drinking from a washroom tap is not a local habit.

Coffee and tea. Cafes and teahouses run on filtered water, since the machine requires it, so ordering there needs no thought.

The last honest point. What a cautious traveller does is small: boil the water in the room, buy bottled water when out, and use bottled water for a child’s milk. The case that matters most is travelling with a baby or small child, whose digestion has no margin and where a bottle settles it. An adult who stays uncomfortable after something they consumed should see a doctor, not tough it out.