European tap water is among the world's safest. The marketing of bottled water has obscured this. Here's the honest map.
Genuinely safe and good-tasting tap water
- Switzerland: Some of the world's best tap water. Public fountains drinkable everywhere.
- Austria, Germany: Excellent. Vienna's tap water comes from Alpine springs.
- Scandinavia (Norway, Sweden, Denmark, Finland): Excellent everywhere.
- Iceland: The cleanest tap water in Europe.
- UK, Ireland: Safe everywhere, taste is fine.
- Netherlands, Belgium: Excellent.
- France: Safe everywhere. Paris's tap water is fine despite reputation.
Safe but locals prefer bottled
- Italy: Tap water is safe everywhere. Italians drink bottled by tradition. Roman tap water is among the best in the country (Rome's "nasoni" public fountains).
- Spain: Safe everywhere. Madrid and Barcelona excellent.
- Portugal: Safe.
- Greece (mainland): Athens and Thessaloniki tap water is fine.
Patchy — verify locally
- Greek islands: Often desalinated and salty. Mykonos and Santorini specifically — locals drink bottled. Tap is safe to brush teeth.
- Some Croatian islands: Tap water can taste mineral-heavy.
- Eastern European countryside: Verify with your accommodation. Cities are fine.
- Turkey: Istanbul tap is safe to brush teeth, locals drink bottled. Smaller cities — drink bottled.
Strategy
Bring a refillable bottle. Most European cities have public drinking fountains (Rome's nasoni, Paris's Wallace fountains). Save €100+ over a 2-week trip and reduce plastic. Restaurants will provide tap water free in most countries — ask for "carafe d'eau" in France, "acqua del rubinetto" in Italy, or just "tap water" in English elsewhere.