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Hydration Hub – understanding water, every day

The average human body is around 60% water, yet most of us know little about what we drink each day.
Find answers on what's in your water, how filtration works and what it changes – clearly, and backed by evidence.

A smiling woman floating on her back in water, wearing a black bikini top and a light beige bikini bottom.

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Hydration Hub

Coffee pot descaling: how scale makes your coffee bitter
TASTE

Coffee pot descaling: how scale makes your coffee bitter

Mark Appel

Descaling a coffee pot takes half an hour: run a citric-acid-based descaler through the machine, then rinse with two cycles of fresh water. It is worth the effort – limescale is one of the most common reasons coffee turns bitter.

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How long does bottled water last — and why the bottle decides
In your water

How long does bottled water last — and why the bottle decides

Mark Appel

Unopened bottled water typically keeps until the best-before date on the label – usually one to two years. The limit comes from the plastic, not the water: water itself doesn't expire. That distinction is where this story actually starts.

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Benefits of filtered water: what filtering actually changes
Filtration

Benefits of filtered water: what filtering actually changes

Mark Appel

Filtered water is tap water, refined at home: a cartridge reduces chlorine, limescale and certain impurities. The result shows up in three places – the taste in your glass, the scale in your kettle, and the life of your appliances.

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How do Water Filters work? Inside the cartridge, explained
Filtration

How do Water Filters work? Inside the cartridge, explained

Mark Appel

A Water Filter cartridge works with two media in sequence: activated carbon adsorbs chlorine and taste-affecting substances, and ion-exchange resin takes out part of the calcium behind limescale. Here is how each works – and, just as honestly, what a Water Filter can't do.

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A cup of tea with two sides: one with a film on top and one without. Next to is lies a spoon and on the other side stands a bowl with cookies.
TASTE

How to get rid of tea stains in cups — and the scum on top

Mark Appel

Tea stains lift with a paste of bicarbonate of soda and warm water – no harsh chemicals needed. The film on top of your tea has a different cause, and both have more to do with your water than with your tea.

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Two people are swimming in a lake with a SUP. The woman shakes her had and waterdrops are flying through the air.
In your water

How to avoid PFAS: forever chemicals in water, explained

Mark Appel

You can reduce your PFAS exposure in three practical ways: know your local water quality, check everyday products, and treat your drinking water where it helps.

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A woman fills in a glass of water with a water jug in a kitchen. In the background stands a bowl with bright yellow lemons.
Filtration

How long do water filters last — and when to change yours

Mark Appel

Most jug water filter cartridges last about four weeks in everyday use. Here is why the working life is limited, how to change a cartridge properly, and what to do with the old one.

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A glass electric kettle, filled with cloudy tap water, shown on a table in a warm indoor setting. A white cup sits on a saucer to the right.
Limescale

Is limescale bad for you? What filtering really changes

Mark Appel

Short answer: no – limescale is a mineral deposit, not a health risk. Here is what it is, why some homes get so much of it, and what actually helps.

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Come funziona la filtrazione dell'acqua — in 90 secondi

Novanta secondi per capire cosa succede all’interno di una cartuccia per l’acqua tra il rubinetto e il bicchiere: il meccanismo alla base di gran parte di ciò che leggerai in questa sezione.

Carica video: Video animation of a MAXTRA PRO Limescale Expert Water Filter cartridge, which shows the single filter stages inside the cartridge.

Domande frequenti

Capire è una cosa, scegliere è un’altra.

Queste guide tematiche ti aiutano a mettere in pratica ciò che hai letto qui, trasformandolo in una scelta adatta alle tue esigenze idriche e alla tua famiglia.

Guida ai filtri per l'acqua

Rispondi a tre domande e scopri quale filtro per l'acqua è più adatto alla tua famiglia e alle tue esigenze.

Confronto tra caraffe con filtro

Dimensioni, filtri per l’acqua e consumo giornaliero a confronto: scopri qual è la soluzione più adatta alla tua famiglia.

Brocca, rubinetto o bottiglia?

Tre modi comuni per utilizzare un filtro per l'acqua a casa: quando funziona e quando no.

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