Some companies may not disclose the pH or specific mineral content because regulations do not require this level of detail on bottled water labels. Companies might also withhold this information for competitive reasons or because their water does not contain beneficial minerals or has a pH level that might not appeal to health-conscious consumers.
Many popular brands use municipal tap water, which is then purified through processes like reverse osmosis. This method removes impurities, contaminants, and naturally occurring minerals from the water. Companies may then add a specific blend of minerals to enhance the taste.
Here are a few popular brands that are known to source their water from municipal supplies:
Dasani:
Owned by The Coca-Cola Company, Dasani uses local municipal tap water, purifies it through reverse osmosis, and adds a blend of mineral salts to enhance the flavor.
Aquafina:
Produced by PepsiCo, Aquafina also sources water from municipal tap water supplies. It undergoes a purification process called HydRO-7, which is a series of filtration steps that include reverse osmosis.
Nestlé Pure Life:
While Nestlé sources some of its water from natural springs, a significant portion of Nestlé Pure Life water comes from public water sources. It is purified through a multistep process that includes demineralization and reverse osmosis, and then supplemented with a slight addition of minerals.
Kirkland Signature:
The bottled water brand owned by Costco is known to source its water from both municipal supplies and natural sources, depending on the region. The water is treated and purified before bottling.
Glacéau Smartwater:
Another product from The Coca-Cola Company, Smartwater starts with municipal water which is then vapor-distilled, a process inspired by the hydrologic cycle. After distillation, electrolytes are added for taste.