Aquafina's Purification Process: The Removal of Minerals
Aquafina is a purified drinking water, which means it undergoes a comprehensive filtration process to strip the water of most dissolved solids, including minerals. This process, called HydRO-7™, is a state-of-the-art system that includes several steps to achieve a high level of purity and a consistent taste. The primary technology responsible for removing minerals is reverse osmosis (RO).
Reverse osmosis works by forcing water through a semi-permeable membrane under high pressure. The membrane's pores are so small that they block larger molecules, such as mineral ions and salts, from passing through. This effectively separates the pure water (permeate) from the concentrated stream of impurities and minerals (brine). For Aquafina, this step is crucial for delivering a product with a very low Total Dissolved Solids (TDS) count, typically averaging around 4 ppm, which is significantly lower than the FDA standard of 10 ppm for water labeled as 'purified'.
The Role of Minerals in Drinking Water
While Aquafina's process intentionally removes minerals, it's important to understand the role these minerals play in different types of water. Spring water, for example, retains its mineral content because it is sourced from a natural, underground formation where water flows to the surface. As it travels through layers of rock, it picks up minerals like calcium, magnesium, and potassium, which contribute to its distinct taste. Purified water, on the other hand, is valued for its lack of flavor and consistent purity, which is achieved by removing these same substances.
Common minerals removed during the Aquafina purification process include:
- Calcium
- Magnesium
- Sodium
- Potassium
- Chlorides
- Sulfates
- Phosphates
Aquafina vs. Other Bottled Waters
Not all bottled waters are created equal, and the primary difference lies in the source and purification method. Comparing Aquafina's purified water to natural spring water brands highlights the distinction between a mineral-free profile and a mineral-rich one.
| Feature | Aquafina (Purified Water) | Spring Water (e.g., Evian) |
|---|---|---|
| Source | Public municipal water sources | Natural, underground springs |
| Purification | Rigorous multi-step process including reverse osmosis | Filtered to remove contaminants but retains minerals |
| Mineral Content | Low to negligible, with a TDS of around 4 ppm | Contains naturally occurring minerals and electrolytes |
| Taste Profile | Clean, crisp, and consistent taste | Flavor varies based on the unique mineral composition of the source |
| Mineral Replenishment | None; minerals are intentionally removed | Naturally present from the water's source |
This comparison shows that a consumer's choice depends on their preference for a taste-free product (purified) versus one that has a natural mineral flavor (spring). Aquafina's success relies on delivering the former with high consistency.
The Purpose of Mineral Removal
The reason for removing minerals is two-fold. First, it ensures a uniform and consistent taste, as mineral content can vary significantly depending on the initial water source. This consistency is a key selling point for a national brand like Aquafina. Second, the advanced purification process, including reverse osmosis and ozonation, removes a wide range of dissolved solids and potential contaminants, ensuring a high level of safety and purity that often exceeds federal government standards. While minerals like calcium and potassium are necessary for the body, the minute levels typically found in water have little to no impact on overall health, and are far outweighed by dietary intake.
Conclusion
In conclusion, Aquafina water is intentionally designed to contain virtually no minerals. Through its rigorous HydRO-7™ purification process, which centers on reverse osmosis, Aquafina removes most dissolved solids, including naturally occurring minerals. This results in a very low TDS count and a clean, consistent taste. For consumers seeking water with mineral content, spring water brands are the appropriate alternative. Aquafina, by contrast, provides a product defined by its purity and the absence of minerals. It's a matter of preference whether a consumer values a mineral-rich water or a purified, mineral-free option.
For more detailed information on Aquafina's purification process, visit the official Aquafina FAQ page.
Frequently Asked Questions About Aquafina's Mineral Content
Why does Aquafina remove minerals?
Aquafina removes minerals to achieve a consistent, pure taste and a very low level of Total Dissolved Solids (TDS), ensuring a uniform product regardless of the initial water source.
Is Aquafina water completely mineral-free?
No, it's not completely mineral-free, but it contains only trace amounts. The reverse osmosis process removes up to 99% of dissolved solids, but it is impossible to remove every single ion, resulting in a negligible mineral content.
Does the removal of minerals make Aquafina water less healthy?
No, the removal of minerals does not make Aquafina water unhealthy. The minerals our bodies need are primarily obtained through diet, not from drinking water, so the minimal amounts in water are not a significant nutritional source.
What is the difference between purified water and mineral water?
Purified water, like Aquafina, is treated to remove nearly all dissolved solids and minerals, while mineral water comes from a protected underground source and retains its natural mineral content.
What is Aquafina's TDS (Total Dissolved Solids) count?
Aquafina's average TDS reading is approximately 4 ppm, which is significantly lower than the FDA standard of 10 ppm for water labeled as 'purified'.
Does Aquafina add anything back to the water after purification?
No, Aquafina does not add anything back to its purified water, unlike some other brands that add minerals for taste.
Is Aquafina just bottled tap water?
Aquafina originates from public water sources, but it undergoes a rigorous multi-step purification process, including reverse osmosis, which makes it distinct from standard tap water.
