Safe
Finland
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Last reviewed:
Is Tap Water Safe to Drink in Helsinki?
Yes, tap water in Helsinki is safe to drink and ranks among the best in the world. HSY (Helsinki Region Environmental Services Authority) supplies pristine lake water through one of the world’s longest rock tunnels.
Hardness
Soft
Country
Finland
Rating
Safe
Soft
Moderate
Hard
Very Hard
Water Source
Helsinki’s water comes from Lake Päijänne, transported 120 km through the Päijänne Water Tunnel (one of the world’s longest rock tunnels) and treated at the Vanhakaupunki and Pitkäkoski plants.
Contaminants & Concerns
No significant health concerns. HSY conducts weekly testing and the water consistently meets all EU standards. The pristine lake source and advanced treatment produce exceptionally clean water.
Tips
- •Helsinki tap water is world-class — there is absolutely no reason to buy bottled water
- •The very soft water means you need significantly less soap, shampoo, and detergent
- •Refill your bottle at any tap, including in public buildings, libraries, and parks
Frequently Asked Questions
Sources & References
The safety rating and guidance on this page draw on the following sources. See our full methodology.
- •WHO Guidelines for Drinking-water Quality
- •CDC Travelers' Health destination pages
- •The municipal water utility's published quality data