German tap water is safe to drink. It is one of the most tightly regulated drinking water supplies in the world, governed by the German Drinking Water Ordinance (Trinkwasserverordnung), which sets strict limits on contaminants, heavy metals, and bacteria. Most visitors and residents can drink it straight from the tap without concern. The main exception involves older buildings with lead pipes, which are now being phased out under law.
What the Law Requires
Germany’s Drinking Water Ordinance sets legally binding limits that water utilities must meet before water reaches your building. For harmful bacteria like E. coli and intestinal enterococci, the allowed level is zero per 100 milliliters. That’s not a low threshold; it’s an absolute zero-tolerance standard. General bacterial colony counts must show “no abnormal change,” meaning the water leaving treatment plants is essentially sterile.
For chemical contaminants, the limits are equally strict. Nitrates are capped at 50 mg/L, and lead is currently limited to 0.010 mg/L, with an even tighter limit of 0.005 mg/L taking effect in January 2028. These values are in line with, and in some cases stricter than, EU and WHO guidelines.
How German Water Is Treated
If you’ve noticed that German tap water doesn’t taste or smell like chlorine, you’re not imagining it. German water utilities rely primarily on natural filtration, groundwater sources, and mechanical treatment rather than heavy chlorination. Chlorine-based disinfection is used, but at low doses. The permitted chlorate concentration (a byproduct of chlorine disinfection) is capped at 70 µg/L, and standard dosing quantities stay well below that ceiling.
Many German cities draw water from deep wells or bank-filtered river sources that require minimal chemical treatment. The result is water that tastes notably cleaner than what you might be used to in countries that rely more heavily on chlorine.
Mineral Content and Hardness
German tap water tends to be mineral-rich, particularly in calcium. Berlin’s water, for example, contains about 110 mg/L of calcium and 11 mg/L of magnesium. This is typical of many German cities, especially those in regions with limestone geology.
High mineral content means “hard” water. You’ll notice it as limescale buildup in kettles and on faucets, but it poses no health risk. The calcium and magnesium in hard water actually contribute to your daily mineral intake. If the taste bothers you or you want to protect appliances, a simple filter pitcher can reduce hardness, but it’s not necessary for safety.
The Lead Pipe Problem in Older Buildings
The one real risk with German tap water has nothing to do with the water supply itself. It comes from old lead pipes inside buildings. Water that sits in lead pipes overnight can absorb small amounts of lead, and there is no safe level of lead exposure, particularly for pregnant women and young children.
Germany addressed this directly. Since January 12, 2026, operating lead pipes in drinking water installations is prohibited under the Drinking Water Ordinance. Landlords and property managers were required to replace or decommission all lead pipes by that date and provide written proof to the local public health authority. There is no exception for rented properties, including small accessory apartments or commercial buildings.
Owner-occupied single-family homes can apply for an extension until January 2036, but only if no one is renting the property and no pregnant women or small children live there. In practice, this means most rental housing should now be lead-free. If you’re renting an apartment in a pre-1970s building and aren’t sure about the pipes, you can ask your landlord directly. They are legally required to have addressed this.
How to Know What’s in Your Water
Every German water utility publishes detailed water quality reports, often available on their website. These reports break down mineral content, pH, hardness, and contaminant levels for your specific supply area. Searching your city’s name plus “Wasserqualität” or “Trinkwasser” will usually get you there.
If you want to test the water at your own tap (which reflects the condition of your building’s pipes, not just the utility supply), each German state maintains a list of approved drinking water testing laboratories. You can find your local list through your state health authority or the local Gesundheitsamt (public health office). The German Technical and Scientific Association for Gas and Water (DVGW) and the Federal Environment Agency are also useful starting points. Costs vary by lab and the scope of testing, so contact the lab directly for pricing.
Practical Tips for Travelers and New Residents
You can fill a glass from any kitchen tap in Germany and drink it safely. Restaurant tap water is the same supply, though many restaurants will still try to sell you bottled water. Bathroom taps connected to the same cold-water line are also fine, though some older buildings route bathroom water through storage tanks that may not be as fresh.
If you’re staying in a very old building and want to be cautious, let the cold tap run for 30 seconds to a minute before drinking, especially first thing in the morning. This flushes out water that may have been sitting in the pipes overnight. Use only cold water for drinking and cooking, since hot water systems can leach more metals from pipes and fittings.
There is no need to buy bottled water in Germany for safety reasons. Germans do buy a lot of sparkling mineral water, but that’s a taste preference, not a safety concern. The tap water meets standards that are, in many cases, stricter than what’s required for bottled water.