Water Safety Abroad: Country-by-Country Guide for Indian Travellers
By Aditi Rao (Aditi Rao covers food-focused travel for Indians — street food cities, vegetarian and Jain dining abroad, culinary tours and food safety on the road.) · Published · Last updated · 8 min read
Tap water that locals drink happily can still upset an Indian stomach. Here is a country-by-country guide to drinking water safely abroad and avoiding waterborne illness.
Quick answer
In most of Western Europe, the UK, Japan, Singapore, Australia, New Zealand, Canada and the US, tap water is safe to drink. Across much of Southeast Asia, South Asia, Africa, the Middle East and Latin America, stick to sealed bottled or properly filtered water. When unsure, default to bottled — and watch ice, raw-washed salads and brushing your teeth. Even safe water can mildly upset a stomach used to Indian water.
Why even safe water can upset your stomach
Water that is microbiologically safe is not the same as water your gut is used to. Different mineral content, chlorination levels and local microbes can cause mild traveller's tummy even in countries with excellent tap water. This is not infection — it is adjustment. The risk passes in a day or two, but for an important first day abroad, many Indian travellers prefer bottled water everywhere for the initial 24–48 hours, then switch to tap where it is genuinely safe.
Countries with safe tap water
You can generally drink tap water straight from the tap in:
- Western & Northern Europe — UK, Ireland, Germany, France, Netherlands, Switzerland, Scandinavia, Austria, Belgium.
- Developed Asia-Pacific — Japan, Singapore, South Korea, Australia, New Zealand.
- North America — Canada and most of the United States (city supplies).
In these places the tap water is safe; the worst you risk is the mild mineral-adjustment effect above. Carry a reusable bottle and refill — it saves money and plastic.
Countries where you should drink bottled water
Default to sealed bottled or reliably filtered water in:
- Southeast Asia — Thailand, Vietnam, Indonesia (Bali), Cambodia, the Philippines.
- South Asia — Nepal, Sri Lanka, Bangladesh.
- Most of Africa and large parts of the Middle East (outside top-tier hotels and the UAE's treated supply, which many still avoid drinking).
- Latin America — Mexico, Peru, Bolivia and much of Central/South America.
Always check the seal is intact when buying bottled water — refilled bottles are a known scam in some tourist areas.
The ice question
Ice is the most underestimated risk. In countries where you should not drink the tap water, ice made from that same water is equally risky. The reassuring part: in many tourist destinations, especially across Southeast Asia, commercial ice is made from purified water in factories — the cylindrical ice with a hole through the middle is a good sign it is commercial and safe. Loose, irregular ice in cheaper local spots is more of a gamble. If in doubt, ask for your drink without ice.
Hidden water risks most travellers miss
- Brushing your teeth — in unsafe-water countries, rinse with bottled water, not the tap.
- Raw salads and cut fruit — these are often washed in tap water; in risky regions, prefer cooked vegetables and fruit you peel yourself.
- Hotel water dispensers and kettles — fine for tea or coffee where boiling kills pathogens, but a lukewarm dispenser may not be safe.
- Swallowing pool or shower water — generally low risk, but avoid gulping it.
- Fountain drinks and diluted juices — these use local water and ice; sealed bottled or canned drinks are safer.
Practical tips for water safety
- Carry a backup. A lightweight water-purification bottle or a few water-purification tablets are cheap insurance for remote travel.
- Boiling works. A rolling boil for a minute makes water safe — useful where bottled water is scarce.
- Hot drinks are safe. Freshly made tea and coffee are reliably safe almost anywhere.
- Stay hydrated. ORS sachets from any Indian pharmacy are worth packing for both heat and any stomach upset.
- Pack basic meds. Carry an anti-diarrhoeal and rehydration salts so a minor upset does not derail your trip.
What to do if you get sick from water
Most waterborne stomach upsets are mild and self-limiting. Rest, stop eating heavy food, and rehydrate aggressively with ORS or bottled water — dehydration is the real danger, especially in hot climates. Over-the-counter anti-diarrhoeals can help for travel days. See a doctor if you have a high fever, blood in your stool, severe abdominal pain, or symptoms lasting more than two to three days — these can signal a bacterial or parasitic infection that needs treatment. Travel insurance with medical cover is worth having for exactly this.
Frequently asked questions
Is tap water safe to drink in Europe?
In Western and Northern Europe — the UK, Germany, France, Netherlands, Switzerland, Scandinavia and similar — yes, tap water is safe. Carry a reusable bottle and refill it. In parts of Eastern and Southern Europe it is usually fine in cities, but check locally if unsure.
Can I drink tap water in Thailand or Bali?
No. In Thailand, Bali and most of Southeast Asia, stick to sealed bottled or properly filtered water. Tap water is not treated to a standard safe for drinking. Commercial ice is generally fine, but avoid drinking straight from the tap or rinsing your toothbrush with it.
Is ice safe in countries where tap water is not?
Ice made from unsafe tap water is risky. However, commercial factory-made ice — the cylindrical pieces with a hole through the middle, common across Southeast Asia — is made from purified water and is generally safe. Loose, irregular ice at cheap local stalls is more of a gamble.
Why do I get an upset stomach even with safe tap water?
Because water that is microbiologically safe can still differ from Indian water in minerals, chlorination and local microbes. Your gut needs a day or two to adjust. It is not an infection and passes quickly, but many travellers drink bottled water for the first 24–48 hours to be safe.
Should I brush my teeth with tap water abroad?
In countries with safe tap water, yes. In places where you should not drink the tap water — Southeast Asia, much of Africa, Latin America — rinse and brush with bottled water instead, since even small amounts swallowed can cause illness. It is a small habit that prevents a lot of trouble.
Are salads and cut fruit safe in risky-water countries?
Be cautious. Raw salads and pre-cut fruit are often washed in tap water, so in risky regions they can carry the same pathogens. Prefer cooked vegetables and fruit you peel yourself, like bananas and oranges. This single rule prevents a large share of travellers' stomach upsets.
What should I pack for water-related stomach trouble?
Pack ORS (oral rehydration salts) sachets, a basic anti-diarrhoeal, and consider water-purification tablets or a filter bottle for remote travel. ORS is the most important — rehydration, not medication, is what prevents a mild upset from becoming a serious problem in hot climates.
When should I see a doctor for a water-borne illness?
See a doctor if you have a high fever, blood in your stool, severe abdominal pain, or symptoms lasting more than two to three days. These can indicate a bacterial or parasitic infection needing treatment. Travel insurance with medical cover makes seeing a doctor abroad far less stressful.