Is It Safe to Drink Tap Water in London Ukの主要なニュースを専門的かつ分かりやすくまとめました。全体像を一目で把握できます。

The short answer is a resounding yes. London’s tap water is not just safe—it’s regulated to a standard that many bottled waters envy. Thames Water, the city’s main supplier, tests the supply thousands of times a year, far exceeding stringent UK and EU safety guidelines.

That slightly “mineral” taste you notice? It’s actually hard water, rich in calcium and magnesium. While it might leave a bit of limescale in your kettle, your bones and teeth are quietly thanking you for the extra nutrients.

A Brief History of H2O

London’s water journey is a Victorian engineering marvel. Much of what you drink has been cycled through the River Thames and Lee, then cleaned at massive treatment plants like Hampton or Ashford Common. It undergoes a seven-stage purification process, including ozonation and UV filtration.

Fun fact: The city’s original water system was built to combat cholera. Today, that same legacy means your glass is cleaner than what you’ll get from many plastic bottles. You’re literally drinking history—just filtered through modern science.