Ciao, voglio fare la crociera di un giorno da Hanoi centro. Sono davvero confusa se scegliere la baia di ha long o quella di lan...
Staying hydrated in Vietnam is easy, but knowing which water to drink and when to be a little more cautious can make your trip much more comfortable.
From hotel tap water and bottled water to the ice in your morning cà phê sữa đá, travellers often have questions about what's safe. This guide covers what you need to know about tap water in Vietnam, ice, filtered water, and a few simple habits to follow throughout your journey.
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1. Can You Drink Tap Water in Vietnam?
For international travellers, drinking tap water directly in Vietnam is generally not recommended. In major cities such as Hanoi, Da Nang and Ho Chi Minh City, municipal water is treated before entering the distribution system, but its quality at the tap can still be affected by pipes, storage tanks and the plumbing of individual buildings.
That doesn't mean Vietnamese households only drink bottled water. One traditional practice is to boil tap water and let it cool before drinking it. Boiling helps eliminate many harmful microorganisms, and boiled water has long been used in Vietnamese homes for everyday drinking.
Today, water purifiers are also common in Vietnamese homes and workplaces. These systems filter tap water before use, and water from a properly maintained purifier designed to produce drinking water can generally be consumed directly. Hotels and homestays may similarly provide purified water in glass bottles or through refill stations.
Travellers may also come across free drinking-water dispensers in public places. At Noi Bai International Airport in Hanoi, for example, drinking-water stations are available in passenger waiting areas. The water provided there is purified drinking water intended for consumption, rather than ordinary water taken directly from a bathroom tap. These stations can also be useful for refilling a reusable bottle before your flight.
So, the important distinction in Vietnam is not simply tap water versus bottled water. Tap water straight from the faucet is best avoided for drinking, while properly boiled, reliably filtered or purified water is commonly consumed by locals and can be a practical alternative to buying bottled water throughout your trip.
See more: Free pure drinking water at Noi Bai International Airport
2. Can You Brush Your Teeth with Tap Water?
In major Vietnamese cities, using tap water to brush your teeth is common, and this is what many local people do every day. Travellers staying in established hotels in Hanoi, Da Nang or Ho Chi Minh City will often do the same without giving it much thought.
The important difference is that you're rinsing rather than drinking the water. Use only what you need, avoid swallowing it, and don't leave the tap running while brushing.
If you have a sensitive stomach, are travelling with young children, or simply want to be extra cautious, bottled or purified water is an easy alternative. Many Vietnamese hotels already provide drinking water in the room, so keeping one bottle beside the bathroom sink makes this simple. It's worth being more careful at rural homestays and remote mountain accommodations. Water may come from different local sources or storage systems, so ask your host whether the bathroom water is suitable for brushing. If you're unsure, use the purified drinking water provided by the property.
The same approach applies to rinsing dentures, retainers or removable dental appliances: purified or bottled water is a sensible choice if the item will go directly back into your mouth.
For everyday contact, however, there's no reason to avoid tap water altogether. Showering, washing your hands and washing your face with tap water are normal in Vietnam. The main precaution is simply not to treat water straight from an unfamiliar tap as drinking water.
3. Is Ice Safe in Vietnam?
For many travellers, ice is actually a bigger source of uncertainty than tap water.
The good news is that ice served in established hotels, restaurants, cafés and reputable food businesses is generally made from commercially produced or purified water. Ice suppliers are common in Vietnam, particularly in cities and tourism areas.
Rather than avoiding every iced coffee or cold drink, pay attention to where you're buying it. A busy café, established restaurant or hotel is generally a more reassuring choice than somewhere with questionable hygiene or ice that appears to have been handled poorly.
If you're unsure, simply order your drink without ice. This is particularly useful when travelling through remote areas, small villages or places where you're uncertain about the water source.
4. Bottled vs. Filtered Water: Which Is Better?
Both are easy to find in Vietnam, and the better choice often depends on where you're travelling.
Bottled Water
Bottled water is available almost everywhere, from convenience stores and supermarkets to small family-run shops. A standard bottle typically costs only a few thousand to around VND10,000–15,000 (about $0.40 - $0.60), depending on the size, brand and where you buy it. Prices at hotels, attractions and tourist areas can be higher.
La Vie bottled water
Common Vietnamese brands you'll see include La Vie, TH true WATER, Aquafina and Dasani. There's generally no need to seek out imported water.
Whichever brand you choose, check that the cap is properly sealed before drinking, particularly when buying from small roadside vendors.
Filtered Water
Filtered water is increasingly common at hotels, homestays and cruises in Vietnam. Some properties provide a glass bottle of purified water in the room each day, while others have refill stations where guests can fill their own reusable bottles free of charge.
This is a useful option for longer trips because it reduces the number of single-use plastic bottles you need to buy. Bringing a reusable bottle is therefore worthwhile, especially if you're travelling around Vietnam for several weeks.
When heading into mountainous or remote areas, however, fill your bottle before leaving your accommodation and carry enough safe drinking water for the day.
5. Simple Water-Safety Tips for Vietnam
Rather than repeating what to drink, how to brush your teeth or whether to use ice, this section can focus on small practical habits travellers may not think about before arriving.
Stay Ahead of Dehydration
Vietnam's heat and humidity can make you lose fluids faster than expected, particularly when walking around cities, cycling or visiting outdoor attractions. Don't wait until you're thirsty to drink. Carry water throughout the day and take regular breaks during the hottest hours.
Refill Before Long Journeys
Before leaving your hotel for a day trip, trek, cruise transfer or long drive, fill your reusable bottle and carry some extra water. Shops are easy to find in cities, but availability becomes less predictable in mountain areas, villages and on longer countryside routes.
Keep Water Beside Your Bed
Air conditioning can make hotel rooms surprisingly dry overnight. Keeping a bottle or glass of safe drinking water beside the bed is a simple habit that can be useful after a long day outdoors.
Be More Careful After Strenuous Activities
If you're trekking in Ha Giang, cycling through Ninh Binh or spending hours outdoors in hot weather, water alone may not always be enough. An electrolyte drink or oral rehydration solution can help replace salts lost through heavy sweating.
Don't Leave Bottled Water in a Hot Vehicle
Avoid leaving plastic water bottles in a car or direct sunlight for long periods. Take your drinking water with you or replace bottles that have spent hours heating up inside a vehicle.
Carry Extra Water When Travelling with Medication
If you take medication at specific times, keep a small supply of safe drinking water with you rather than relying on finding a shop when you need it. This is particularly useful on long transfers, cruises and excursions outside the cities.
Tap water in Vietnam is generally not recommended for direct drinking, but finding safe water while travelling is straightforward. Bottled, filtered and properly boiled water are readily available, while normal uses such as showering and brushing your teeth with tap water are common in major cities. With a few simple habits and a little extra care in rural areas, water safety is unlikely to be something you'll need to worry about during your trip.
Planning a trip to Vietnam? If you have questions about practical details or would like help creating an itinerary around your travel style, feel free to contact IZITOUR on +84 382 536 266 or by email at [email protected]. Our local travel experts are happy to help you prepare for your journey.
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