Amazon Premium Artesian Water delivers the water directly from the aquifer to the bottle, untouched by humans. You will agree that the taste of Amazon Premium Artesian Water is unmatched and as pure as it can be, and has no aftertaste. Nature is wise and we do not interfere with nature. The first time our water comes into contact with air is when you open the bottle. The Guaraní Aquifer: Amazon Premium Artesian Water flows directly from our artesian source into the bottling plant through a fully sealed piping system. It is never exposed to the elements. You will get the freshest water from the best filtration system in the world, the Brazilian Rain Forest and the Guaraní Aquifer.