Member's Mark Purified Water 40 pack / 16.9 oz.
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This purified water product is derived from municipal sources, which incurs a penalty compared to natural sources like spring or aquifer water. The addition of minerals such as calcium chloride and sodium bicarbonate is common in purified waters to enhance taste, but it does not significantly improve the health profile. The processing level is minimal, but the lack of transparency regarding contaminant testing, such as PFAS, and the potential for microplastic presence in plastic packaging, affects the overall score.
Key ingredients 3
Purified waterNeutral
Purified water is the primary component of this product, providing hydration without additional nutrients or contaminants. The purification process typically involves filtration and distillation to remove impurities, ensuring a clean and safe product. Compared to natural spring water, it lacks minerals but offers consistent purity.
See more about Purified water →Calcium chlorideNeutral
Standard formulation ingredient — neither beneficial nor harmful at typical use.
Risks
Excessive consumption could lead to hypercalcemia, but this is unlikely at the levels used in bottled water.
Benefits
Provides calcium, which is essential for bone health and metabolic functions.
Sodium bicarbonateNeutral
Sodium bicarbonate is used to adjust the pH level of the water, ensuring it is not too acidic. It is a safe and common additive in food and beverages, contributing to a balanced taste profile. While it does not provide significant nutritional benefits, it helps maintain the water's stability and palatability.
Benefits
Helps maintain pH balance, contributing to a more pleasant taste.
Processing
Unprocessed or Minimally Processed Foods
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