We often assume that filtering our tap water is enough to make it healthier. It feels like a simple, reassuring step: better taste, less chlorine, a cleaner perception overall.
Yet the reality is more complex.
Today, tap water can contain traces of chlorine, but also more persistent and less visible substances such as pharmaceutical residues, pesticides, PFAS and even microplastics. While these contaminants are often present at low levels, their growing presence raises an important question: is basic filtration really enough?
The issue is no longer simply whether to filter water or not, but rather understanding what level of purification is actually achieved.
To shed light on this, we asked our CEO to explain the fundamental differences between the most common solutions.
The limits of filter jugs: designed for taste, not full purification
Filter jugs are among the most widely used water filtration solutions. Their primary function is simple: improve the taste of tap water.
They do this mainly by reducing chlorine and certain compounds responsible for unpleasant odours or flavours. As a result, the water often feels softer and more pleasant to drink.
However, this improvement can be misleading.
Most filter jugs rely on basic activated carbon filtration, which works effectively on certain surface-level contaminants but remains limited when it comes to more complex, dissolved substances. Pollutants such as PFAS, pharmaceutical residues, microplastics or volatile organic compounds are far more difficult to remove and often pass through these systems.
In contrast, reverse osmosis operates at a completely different level. This technology uses a semi-permeable membrane capable of removing almost all dissolved elements in water, including the smallest and most persistent contaminants.
The outcome is highly purified water — but also water that has been stripped of its naturally occurring minerals.
This is where a key step comes in: remineralisation.
Minerals are not only essential for taste, they also play a fundamental role in how the body absorbs and retains water. Properly balanced water is both more enjoyable to drink and more effective for hydration.
This shift — from simple filtration to controlled purification and remineralisation — fundamentally changes the way we approach water quality.
The real limitation of filter jugs: a lack of control and visibility
Beyond their technical limitations, filter jugs also present a more subtle issue: the lack of control they offer to users.
Over time, many people stop paying attention to their usage. Filters are not always replaced regularly, often because there is little visibility on their actual performance.
In practice, it is difficult to know what has truly been removed from the water, what remains, and how much the quality has improved. This uncertainty creates a gap between perception and reality.
Water may taste better, but its composition remains largely unknown.
This lack of transparency can gradually reduce trust and long-term engagement. Users adopt a solution, but without clear feedback, it becomes harder to maintain consistent habits.
Today, expectations are evolving. It is no longer just about improving water superficially, but about understanding and controlling what we consume on a daily basis.
Better taste does not mean purer water
One of the most common misconceptions is equating taste with purity.
Water that is less chlorinated, smoother and more pleasant can easily give the impression of being cleaner or healthier. In reality, taste alone is not a reliable indicator of water quality.
Many complex contaminants are invisible, odourless and tasteless. Substances such as PFAS, microplastics, pharmaceutical residues or VOCs cannot be detected through sensory perception — and are not effectively removed by standard filtration systems.
This creates a false sense of security.
Improving taste is a positive first step, but it does not necessarily address the deeper issue of water composition and long-term exposure to certain compounds.
From filtration to true purification: a shift in expectations
The conversation around water is changing.
Consumers are becoming more informed and more demanding. The focus is shifting from basic filtration towards a more precise understanding of purity, composition and functionality.
This evolution reflects a broader trend in health: moving from passive consumption to active optimisation.
Water is no longer seen as a neutral input, but as a variable that can be measured, controlled and improved.
In this context, the question is no longer whether water should be filtered, but how far we want to go in ensuring its quality.
Because ultimately, better hydration does not start with drinking more — it starts with knowing what we are actually drinking.
