Discovered by a French nobleman during the French Revolution, Evian stems from a source that was thought to hold curative and restorative powers from the start. Evian begins as water that emerges from the Source Cache in France in a mountain tunnel at 52.88 degrees Fahrenheit. The source is fed from the melted snow and rain that filters through glacial sand from the Vinzier Plateau over a period of fifteen years. The glacial sand is surrounded by clay, which protects the water from pollution and gives it its mineral composition and taste. The water is bottled at a nearby bottling plant, which is highly automated and exceptionally hygienic.