Germany

Berlin tap water meets strict EU and German standards and is safe to drink; if you prefer a milder taste, buy a filtered or bottled water for drinking.

Excellent natural spring water — drink freely from the tap.

Frankfurt tap water meets EU standards and is safe to drink; if you dislike mineral/hard water taste, use a filter or buy bottled water. Ask for 'Leitungswasser' in restaurants if you prefer tap water (they often provide it on request).

Hamburg tap water meets EU/WHO standards and is safe to drink directly; feel free to order tap water (Leitungswasser) or refill a bottle. Bottled water is widely available if you prefer a specific taste or brand.

Cologne tap water meets EU standards and is safe to drink; if you prefer a milder taste, consider bottled water or a small filter because the water is often hard.

Düsseldorf tap water is safe to drink and commonly consumed; if you prefer a milder taste, buy bottled water or use a small filter. In restaurants you can ask for 'Leitungswasser' (tap water), though some places may serve bottled water instead.

Stuttgart's tap water meets strict German and EU standards and is safe to drink; expect moderately hard, slightly chalky taste. Ask for tap water in restaurants if you prefer it, or buy bottled/filtered water if you dislike the hardness.

Leipzig's tap water meets German and EU standards and is safe to drink; carry a reusable bottle and refill from taps or public fountains. If you prefer a milder taste, choose bottled water or use a small personal filter for hardness.

Dortmund's tap water meets German and EU standards and is safe to drink; expect a mineral‑rich (hard) taste and use a small filter or bottled water only if you prefer softer water. You can brush your teeth, shower, and wash produce with tap water without concern.

Essen's tap water meets German and EU standards and is safe to drink; it is moderately hard and may taste chalky, so use bottled or filtered water if you prefer softer water. Ask for 'Leitungswasser' in restaurants if you want tap water, but many venues typically serve bottled mineral water.

Bremen's tap water is safe to drink and commonly consumed by locals; if you have a very sensitive stomach or are staying in an older building with old plumbing, run the tap briefly or use bottled water.

Dresden's tap water meets German and EU standards and is safe to drink — feel free to refill a reusable bottle. Bottled mineral water is also widely available if you prefer a specific mineral taste.

Hannover tap water is safe to drink straight from the tap; carry a bottle if you prefer to avoid the hard/mineral taste.

Nuremberg tap water meets strict German/EU standards and is safe to drink; it can taste mineral-rich or hard, so bring a small filter or buy bottled water if you prefer a softer taste.

Duisburg tap water meets German and EU standards and is safe to drink; use a reusable bottle. If you prefer a milder taste, buy bottled mineral water—the local water is often hard/mineral-rich.