Iceland boasts some of the cleanest air in the world, which is crucial for water purity at its inception. Water evaporating over the rainforests of South America heads in the direction of the North Pole thanks to the Earth's rotation and air currents.
Pure natural ice is created from falling snow, which is formed in the atmosphere from water vapor. Water that freezes at atmospheric altitudes and changes into snow receives oxygen during this process. High levels of free dissolved oxygen become a natural part of the water, which is not very common for European water. Raindrops freezing into snowflakes fall on Iceland's volcanic soil.
Water here has been frozen for thousands of years and gradually changed into impermeable ice under the pressure of other snowflakes. It subsequently drops down along the wall of a massive glacier all the way to the volcanic bedrock, where it begins to melt naturally thanks to the temperature of the Earth's crust. Glaciers naturally melt away from the lower layers, which are 30,000 to 90,000 years old.
Water from these melting glaciers in Iceland undergoes natural filtration through basalt, tufa, obsidian, rhyolite, and pumice. This combination of "filtration" plates does not exist anywhere else on Earth. These rocks give the glacier water its inherently sweet taste and ensure its high level of alkalinity. Thanks to these factors, the taste of glacier water from Iceland is unmistakable.