A five-year filtration journey
The water emerging at the Volvic spring begins as rain and snow falling on the Chaîne des Puys, a 40-kilometer-long chain of dormant volcanoes in central France. This area, part of the Auvergne Volcanoes Regional Park, functions as a 38-square-kilometer natural catchment area. From there, the water seeps into the ground and begins a slow, five-year process through a unique geological structure created by a volcanic eruption 13,500 years ago.
The filtration system consists of six distinct layers of volcanic material. The water first passes through porous layers of scoria, also known as pozzolana, and fissured lava before reaching an impermeable granite basin. This massive natural filter includes layers of basalt and trachyandesite. As the water percolates through these strata, it is protected from surface pollution and acquires its specific mineral signature. The entire process happens deep underground, with the water eventually captured at a depth of 90 meters before it is bottled. This process gives the water a low mineral content and a neutral pH of 7.