What is DASANI, and where does it come from?
DASANI is a bottled water brand launched by The Coca-Cola Company in 1999. Unlike natural spring water, which comes from an underground formation that flows to the surface, DASANI's water is sourced from local municipal water supplies. Essentially, it starts as tap water, which Coca-Cola then purifies and bottles. This fact, particularly during a failed UK launch in 2004, contributes to the brand's controversy and negative public perception.
The rigorous purification process
DASANI's purification involves a multi-step process to remove impurities. This includes:
- Granular Activated Carbon (GAC) Filtration: Removes compounds and chlorine.
- Reverse Osmosis: Filters out minerals and dissolved solids, producing purified water.
- Ultraviolet (UV) Light Disinfection: Destroys microorganisms.
- Ozonation: A final purification step using ozone gas.
Why does DASANI water taste different?
After purification, minerals are added back for taste. This blend, not for nutrition but for a consistent flavor, includes magnesium sulfate and potassium chloride. While sodium chloride (table salt) was added in the past, leading to claims it made people thirstier, it has reportedly been removed for a "cleaner" taste. The resulting taste is subjective and often described as distinct from natural spring or filtered tap water.
DASANI vs. Spring Water vs. Filtered Tap Water
Comparing DASANI to other water types highlights the reasons for consumer perception. The table below outlines key differences.
| Feature | DASANI (Purified Water) | Natural Spring Water | Filtered Tap Water | 
|---|---|---|---|
| Source | Municipal water supplies | Certified underground springs | Public municipal water supplies | 
| Purification | Advanced multi-step process including reverse osmosis and filtration | Minimal filtration to preserve natural minerals | Simple filtration removing contaminants | 
| Mineral Content | Added post-purification for consistent taste | Naturally occurring minerals | Varies based on source and filter; retains some minerals | 
| Taste Profile | Consistent, sometimes described as "sharp" or "processed" due to added minerals | Varies, often preferred for natural taste | Varies, generally free of chemical tastes after filtering | 
The UK marketing fiasco and its lasting impact
A major contributor to negative sentiment was DASANI's failed UK launch in 2004. The controversy arose from two main issues:
- Sourcing Revelation: Media reports revealed DASANI was sourced from treated tap water, sparking outrage among consumers who felt misled.
- Bromate Contamination: Shortly after launch, a recall occurred due to excessive levels of bromate, a potentially carcinogenic chemical, resulting from the water treatment process.
These issues led to the brand's withdrawal from the UK and canceled European expansion plans. The failure created a lasting negative reputation, drawing comparisons to a sitcom plot about selling bottled tap water.
Environmental and health concerns
Criticism of DASANI also includes environmental and health aspects.
- Plastic Bottles: Like other bottled water, DASANI contributes to plastic waste, although the brand has introduced bottles with recycled and plant-based materials.
- Microplastics: Microplastics have been detected in various bottled waters, including DASANI, raising health concerns under investigation.
- Additive Concerns: While the added minerals are generally safe, some critics question their necessity and potential health effects. The taste from these additives is a common source of consumer dissatisfaction.
Conclusion
While chemically H₂O, DASANI is not considered water in the same way as natural spring water by many consumers. This perception is due to its origin as purified tap water, the controversial UK launch, and the distinct taste from added minerals. For those seeking a natural product, DASANI is seen as a highly-processed alternative with a history that fuels skepticism. However, it remains a viable option for those who prefer a consistently-tasting purified bottled water. The debate over whether DASANI is "real" water largely centers on consumer perception, marketing transparency, and trust, rather than just its chemical makeup.