More and more people are concerned about the quality of their drinking water. Water filters can help reduce certain undesirable substances and particles from tap water. Particularly powerful filter systems use very fine filter stages or molecular filtration.
👉 Why many people filter their water today
However, with very thorough filtration, another question arises:
What actually happens to the water after filtration?
Because depending on the filter technology, not only undesirable substances are reduced, but also some of the minerals contained in the water.
This is precisely where the principle of remineralization comes into play. Filtered water is re-enriched with minerals after filtration.
The idea behind it is simple: filtration and mineralization don't have to be contradictory – they can be two successive steps in holistic water treatment.
1. Filtering water – and then what?
A water filter can perform very different tasks.
Depending on the technology, for example, sediments, certain organic substances, chlorine, heavy metals, or other undesirable components can be reduced. Particularly finely working systems, such as reverse osmosis, can largely free the water from dissolved substances.
This is interesting if you want to obtain water that is as pure as possible.
On the other hand, it also changes the composition of the water.
Very fine filtration reduces not only undesirable substances but also minerals.
Therefore, high-quality water treatment does not necessarily end with filtration. In appropriate systems, remineralization follows.
2. What happens with very fine filtration?
One of the best-known technologies for particularly thorough water filtration is reverse osmosis.
In this process, water is forced under pressure through a very fine membrane. Depending on the design, numerous dissolved substances and tiny particles can be removed from the water.
The result is very pure water.
But precisely this intensive filtration has a side effect: minerals are also significantly reduced.
This is why post-filtration mineralization is often used with reverse osmosis systems.
Instead of simply leaving the water as it is after filtration, it is deliberately enriched with minerals again.
👉 Buying a water filter – what you really need to look out for
3. Why minerals in water play a role
Minerals are natural components of many drinking waters.
Calcium and magnesium, for example, are typical minerals that can be found in natural water. However, the mineral composition varies significantly depending on the origin and geological conditions.
This also explains why water from different regions can taste different.
Minerals influence, among other things, the taste and composition of the water.
In heavily filtered water, however, the original mineral composition can be significantly reduced.
Remineralization can therefore serve to reintroduce minerals to filtered water and specifically adjust its composition.
Important note: Drinking water is not the only or most important source of minerals. Diet also provides a significant portion of the required minerals.
4. Nature shows the way
If you look at natural springs, you'll find an interesting process.
Water moves through soil and rock, coming into contact with various minerals. On its way, it can absorb minerals before finally emerging as spring water.
The exact composition depends on the region, the rock, and the path of the water.
Exactly this principle also serves as a model for remineralization:
First, the water is thoroughly filtered – then selected minerals are added again.
This creates a two-step process:
Filtration → Remineralization
In modern water filter systems, this process can be supplemented by further treatment stages.
5. What exactly does remineralization mean?
Remineralization refers to the targeted enrichment of previously filtered water with minerals.
For this purpose, mineral-containing materials or special mineralization cartridges can be used.
Which minerals are ultimately contained in the water and in what concentration depends on the technology used and the materials employed.
An important point is therefore:
Not all mineralization is the same.
Therefore, anyone looking to buy a water filter should not only consider how finely the water is filtered.
Questions such as the following are equally interesting:
- Which filter technology is used?
- Which substances are reduced?
- Are minerals reintroduced after filtration?
- Which minerals are used?
- How is the mineralization technically implemented?
- How often do filters and mineralization elements need to be changed?
6. Sango Coral and Maifan Mineral Stone
Different natural mineral sources can be used for mineralization.
Sango marine coral and Maifan mineral stone are also used in various water treatment systems.
The original UrQuelle concept, for example, relies on both materials: Sango marine coral is intended to provide minerals and trace elements, while Maifan mineral stone is also used to mineralize the filtered water.
In product descriptions, one should distinguish between the technical function of mineralization and broader health claims.
Because the fact that water is mineralized does not automatically mean that certain health effects will occur.
What is crucial is how the entire water treatment is structured and what quality the source water possesses.
7. Filtration and Mineralization as a Complete System
A high-quality water filter system should therefore not be viewed solely from the perspective of:
"How strongly does it filter?"
More interesting is the entire process chain.
A modern system can consist of several stages, for example:
1. Pre-filtration
Coarser particles and sediments are reduced first.
2. Fine or molecular filtration
A particularly fine filter stage reduces further undesirable components.
3. Post-filtration
Depending on the system, further filter stages can, for example, influence taste or smell.
4. Remineralization
After intensive filtration, minerals are reintroduced.
5. Further water treatment
Depending on the system, additional components for treatment, swirling, or vitalization can be used.
This turns a simple water filter into a more holistic water treatment system, where several steps are coordinated.
8. UrQuelle Diamant – Filtration and Mineralization Combined
An example of this approach is the UrQuelle Diamant.
The system combines various filtration stages with subsequent mineralization and further treatment steps. According to the manufacturer, the system includes pre-filtration, 800 GPD molecular filtration, activated carbon post-filtration, and other treatment stages. For remineralization, Maifan mineral stone and Sango marine coral, among others, are used.
The interesting point here is the combination:
The water is first very thoroughly filtered and then remineralized.
This is not simply to produce the purest possible water, but water that contains minerals again after intensive filtration.
If you are interested in the system, you can find the technical information directly at
👉UrQuelle Diamant
9. What should you consider when buying a water filter?
If you want to buy a water filter, it's worth taking a close look at the entire technology.
Because "water filter" is not just "water filter."
🔎 1. Which filter technology is used?
Activated carbon, fine filters, reverse osmosis, or molecular filtration work differently.
Different technologies may be useful depending on the goal.
💧 2. How thoroughly is it filtered?
Pay attention to which filter stages are actually used and which substances are reduced according to the manufacturer.
🧪 3. What happens after filtration?
For very fine filter systems, it is interesting whether the water is subsequently remineralized.
🪨 4. Which mineralization is used?
Find out which minerals or materials are used and how the mineralization works.
🔧 5. How easy is it to change the filter?
Even a high-quality system requires regular maintenance and filter changes. Easy handling can therefore make a big difference in everyday life.
💶 6. What does the system cost in the long run?
Not only the purchase price counts.
Filter changes, maintenance, and potential follow-up costs should also be considered.
👉 What does your drinking water really cost you? Calculate easily with the water cost calculator
10. Pure water or mineralized water?
This question is often discussed very fundamentally regarding water filters.
However, you don't necessarily have to choose between "completely pure" or "mineral-rich."
Another perspective is:
Why not combine both?
Intensive filtration can help reduce unwanted substances.
Subsequent remineralization can reintroduce selected minerals into the water.
Precisely this combination is the principle behind many high-quality water treatment systems.
The specific technology is always crucial here.
11. Mineralization is not all the same
One important point is often overlooked in this topic:
More minerals does not automatically mean better water.
The mineral composition of water should always be considered in conjunction with the overall water quality.
The origin and quality of the mineralization materials used also play a role.
Therefore, when buying a water filter, it's worth looking not only at advertising claims but also at the technical functionality in more detail.
A good system should be able to transparently explain:
- how the filtration works,
- which filters are used,
- how remineralization takes place,
- which materials are used,
- when filters need to be changed
- and what ongoing costs are incurred.
12. Why the combination can be interesting for many households
Especially if you consciously choose very thorough water filtration, subsequent remineralization is an aspect you should consider when comparing different systems.
Because water treatment doesn't have to end with removal.
A holistic approach considers the entire journey of the water:
Tap water → Filtration → Purification → Remineralization → Drinking water
The UrQuelle Diamant follows exactly this approach. The system combines various filtration stages with subsequent mineralization and other components for water refinement.
💙 Conclusion: Filtered water doesn't have to remain mineral-poor
Thorough water filtration can reduce many unwanted components. At the same time, with certain methods, a large part of the originally contained minerals can be lost.
That's why remineralization is an interesting topic when purchasing a water filter.
Nature shows us that water naturally comes into contact with minerals on its way through rock and soil. Modern water filter systems attempt to technically adopt this principle.
Anyone who opts for a high-quality water filter should therefore not only ask:
"How well does the system filter?"
But also:
"What happens to the water after filtration?"
Because well-thought-out water treatment can consist of several coordinated steps – from filtration to subsequent mineralization.
💧 Water filter with remineralization
Do you want to not only filter your tap water but also remineralize it after filtration?
The UrQuelle Diamant combines multi-stage filtration with subsequent remineralization and further treatment steps.
With our discount code NU, you receive a 3% discount on UrQuelle water filter systems as well as on energization and vitalization products.
👉 If you are interested in an UrQuelle system, you can get advice directly from UrQuelle on the various solutions.
Important: Before purchasing, always compare filtration performance, technology, mineralization, follow-up costs, and the system type suitable for your household.