Purification: We use micro-filters, reverse osmosis and ultraviolet exposure to take our water to 99.9% purity. Electrolytes: We infuse the perfect blend of pure alkaline electrolytes for a clean and smooth taste. Ionization: We supercharge the water, removing bitter-tasting ions, producing an ionized 9.5pH or higher alkaline water.Essentia is BPA free, fluoride free, chromium free and chlorine free