Water Safety Abroad: Country-by-Country Guide for Indian Travellers
By Arjun Kapoor (Arjun Deshpande covers culinary travel logistics for Indian globetrotters — from duty-free rules and airline catering comparisons to spice-market maps and food-safety prep that actually works on the road.) · Published · 8 min read
Tap water safety varies wildly by country, and it is the single biggest factor in avoiding traveller's illness. This country-by-country guide tells Indian travellers exactly where to drink the tap water and where to stick to bottles.
Quick answer
Safe to drink tap water: most of Western Europe, Japan, South Korea, Singapore, Australia, New Zealand, USA, Canada. Drink bottled water: Southeast Asia (except Singapore), South Asia, Central and South America, Africa, Middle East, Eastern Europe (varies). The safest rule: if you would not drink tap water in that city in India, do not drink it abroad unless you have verified it is potable.
Countries with safe tap water
The following countries have tap water that is safe to drink directly from the tap in urban areas: United Kingdom, Germany, France, Italy, Spain, Switzerland, Austria, Netherlands, Scandinavia (all countries), Japan, South Korea, Singapore, Australia, New Zealand, United States, Canada, and most of Western Europe. In these countries, tap water often tastes different from Indian water (more chlorinated in some US cities, softer in Scandinavian countries) but it is safe.
Japan deserves a special mention: Japanese tap water is some of the cleanest in the world. You can drink from any tap, any water fountain, and even bathroom taps in public spaces. This saves significant money compared to buying bottled water. Tokyo flights and Japan travel tips are on our destination pages.
Countries where you should drink bottled water
Thailand: tap water in Bangkok and major cities is technically treated but most locals and tourists drink bottled water. Ice in restaurants and cafes in urban areas is factory-made (tubular shape) and safe. Rural areas: bottled water only. Bangkok travel is easy with this one precaution.
Vietnam, Cambodia, Laos, Myanmar: bottled water only. Ice in tourist-area restaurants is generally factory-made and safe. Street stall ice is more variable. Indonesia (including Bali): bottled water strictly. Do not brush your teeth with tap water. Mexico and Central America: bottled water. Factory ice is safe in hotels and restaurants. Egypt and Morocco: bottled water. The Middle East (UAE, Oman, Saudi): tap water is desalinated and technically safe but tastes mineral-heavy. Most people prefer bottled. Most of Africa: bottled water except in South African major cities where tap water is treated.
The ice question
Ice safety is the second-most-asked water question after tap water. In most tourist-facing establishments in Southeast Asia, Central America, and North Africa, ice is factory-made from purified water and is safe. Factory ice is recognisable: it comes in uniform cylindrical or tube shapes, often with a hole in the centre. Hand-chipped or irregularly shaped ice from unknown sources is riskier.
In Thailand, Malaysia, and Vietnam, you can generally trust ice in any restaurant, cafe, or bar that serves international tourists. Street stalls are more variable — if the stall has a branded ice cooler (Siam Ice, for example), the ice is factory-sourced. If the vendor is chipping ice from a large block of unknown origin, be cautious.
Hidden water risks most travellers miss
Raw salads and uncooked vegetables washed in tap water are a common source of illness in countries with unsafe tap water. If you are in Vietnam and order a salad at a street stall, the lettuce was washed in tap water. Fruit juices blended with tap water or ice of unknown origin carry the same risk. Brushing your teeth with tap water is a minor but real risk in countries with highly contaminated water — use bottled water in India's neighbouring countries, rural Southeast Asia, and Africa.
Swimming pools in well-maintained hotels are chlorinated and safe. Natural water bodies (rivers, lakes, waterfalls) in tropical countries may carry parasites — avoid swallowing water while swimming. Our food safety guide covers this in a broader context.
Practical tips for water safety
Carry a reusable bottle and fill it from hotel water dispensers or large water bottles in your room — this reduces plastic waste and saves money. LifeStraw and SteriPen are portable water purification tools that work for hiking and rural travel but are overkill for urban tourism (just buy bottled water). In countries with safe tap water, bring a reusable bottle and fill from taps — it is free and reduces single-use plastic. Destination guides include water safety notes for specific cities.
Frequently asked questions
Can I drink tap water in Thailand?
Technically treated in Bangkok but not recommended. Drink bottled water. Factory-made ice in restaurants and cafes is safe.
Is tap water safe in Japan?
Yes. Japanese tap water is among the cleanest in the world. You can drink from any tap, water fountain, or even bathroom taps.
Should I brush my teeth with bottled water abroad?
In countries with heavily contaminated water (rural Southeast Asia, parts of Africa, India's neighbours) — yes, use bottled water. In Thailand and Mexico, most travellers use tap water for brushing without issues, but bottled is safer.