Your gemstones. Your rules.
inu! Bottle
Create crystal water your way. The inu! Crystal Water Bottle features a separate, refillable gemstone chamber filled with genuine Clear Quartz — ready for your favorite crystals and gemstone blends. An engraved Flower of Life sits between the crystals and your water, while the two-chamber design keeps every stone safely separated from what you drink. Made from pure borosilicate glass, inu! turns everyday water into a crystal experience that’s completely your own.
FOUR COLORS. ONE INU!
Pick the one that feels like you.
Lava Black
Blossom Rose
Cloud White
Ocean Blue
THE ORIGINAL DO-IT-YOURSELF BOTTLE
Crystal Water. Your Way.
With inu!, you're not just choosing a crystal water bottle. You're creating something uniquely yours — with your favorite gemstones, a clever interchangeable crystal chamber, and the freedom to change things up whenever inspiration strikes.
inu! starts with genuine Clear Quartz and gives you the freedom to create your own crystal blend. Add stones that mean something to you, change them whenever you like, or discover one of our curated Crystal Jar blends. Your bottle, your energy.
The gemstones sit inside a completely separate crystal chamber, so they never come into direct contact with your drinking water. That means you can enjoy crystal water without worrying about loose stones, residues or unwanted substances entering the water.
No complicated preparation and no waiting overnight. Fill your inu!, give the crystals around seven minutes to work their magic, and your crystal water is ready to enjoy. Easy enough to make part of every day.
Between the crystal chamber and your water sits an engraved Flower of Life — a symbol of sacred geometry used across cultures for centuries. Together with the Clear Quartz and your chosen gemstones, it adds another energetic dimension to the inu! experience.
BRING YOUR WATER TO LIFE
Your Crystals. Your Water.
Just 7 Minutes.
You’ve chosen your gemstones. Now let them do their thing.
Fill your inu! with water and give your crystal blend about 7 minutes. That’s all it takes to create your own VitaJuwel gemstone water — infused with the energy of the crystals you selected and the Flower of Life between them and your water.
The frozen water images shown here offer a fascinating glimpse at the difference: regular tap water on the left, water exposed to VitaJuwel gemstones on the right.
But the experience doesn’t stop with what you can see. Many people tell us their gemstone water tastes fresher, smoother and simply better — which can make reaching for your bottle feel a whole lot more inviting.
Seven minutes. Your crystals. Your kind of water.
Inspired by Tradition. Refined by Experience.
Curated Crystal Jars
Our Crystal Jars bring together premium-quality gemstones, carefully selected for their beauty, character and energetic qualities. The stones are ethically sourced, GKS certified, and combined with the help of master gemologists and experts in crystal healing.
They are inspired by traditional gemstone recipes and have been refined and tested by VitaJuwel over many years. Each one is created with a specific intention in mind — from Harmony and VISION to YIN YANG or the 7 CHAKRAS.
Use them in your inu! to create your own crystal water, or enjoy them however gemstones naturally fit into your life — for meditation, decoration, crystal work or simply because you love having them around.
Beautiful stones. Thoughtful blends. Made to be used your way.
Enjoy Crystal Water with this sustainable, reusable glass bottle for to-go. Infuse your Drinking Water with Precious Gemstones for Positive Energy. BPA-free. Eco-Friendly. Durable. Hygenic.
The Flower of Life...
... is a powerful sacred geometry symbol. It starts with 7 overlapping circles that form a flower-like pattern. Since ancient times, numerous cultures have used its positive energy. All geometric forms can be found within it. It is said to be the pattern for everything existing and stands for the unity of creation.
We’ve deliberately engraved a flower of life on the inside of inu! to add a mighty symbol that, as we believe, strengthens the crystals’ energies and adds its own note to restructure your water positively.
Best in Glass
Our inu! bottles are composed of 100% high-density borosilicate glass. Now, why is that so special?
Well, compared to “regular” glass most bottle manufacturers use, borosilicate glass is thermal shock resistant. That means you can use it with ice cold and very hot water without worries. It’s non-toxic, lead-free and chemically unreactive, so it doesn’t hold any taste. Perfect for pure and uncontaminated water.
A difference you can feel, especially compared to stainless steel or plastic bottles!
Forever green
While you’re reading the text in this box, more than 1,000,000 (!) plastic bottles are trashed and are contaminating our blue planet. Most of them for more than 400 years. 50,000,000,000 (that’s 50 billion) plastic bottles are sold in the US per year. An epidemic of unseen dimensions and consequences.
By 2050, there will be more plastic in the oceans than fish. Please help us to make a difference. Stay healthy and hydrated and drink your water from a reusable bottle. To us, the islands of Hawaii are one of the last paradises on earth. We need more of that GREEN spirit. To honor that, we named out bottle after the Hawaiian word for “drink”: inu!
All you need to know about inU!
Frequently Asked Questions
What is the inu! Crystal Water Bottle?
inu! is our original DIY crystal water bottle—created for everyone who loves the idea of crystal water but wants the freedom to make it completely their own.
A separate crystal chamber in the base of the bottle holds genuine gemstones while keeping them completely apart from your drinking water. Open the chamber, change the stones, create your own combinations, or fill it with one of our professionally composed Crystal Jar blends.
Your bottle. Your stones. Your crystal water.
What makes inu! different from other crystal water bottles?
Most crystal bottles give you one fixed gemstone combination. inu! was designed to do the opposite.
Its removable crystal chamber gives you the freedom to change, combine, and experiment with gemstones whenever you want. Keep it simple, add a favorite stone, create a blend around a personal intention, or completely reinvent your bottle whenever the mood strikes.
And unlike many DIY gemstone bottles, the stones never come into direct contact with your drinking water.
That combination of creative freedom and separation from the water is what makes inu! so special.
How does crystal water work if the stones don’t touch the water?
The VitaJuwel concept is based on the traditional belief that gemstones carry subtle natural vibrations that can interact with water without direct physical contact.
inu! uses a two-chamber design: your drinking water stays inside the main glass bottle while the gemstones sit separately below it. This allows you to enjoy the crystal water concept without stones, coatings, minerals, or residue ever entering your water.
It’s all about the energy—not about soaking stones in your drink.
Can I put my own gemstones into my inu!?
Yes. That’s the whole idea behind inu!.
The crystal chamber opens, so you can add stones that mean something to you: your favorite crystal, one you received as a gift, a stone connected to a special memory, or gemstones you simply feel drawn to.
You can combine your own stones with the included Clear Quartz or completely change your composition whenever you feel like something new.
Why does inu! come with Clear Quartz?
Clear Quartz is one of the most versatile gemstones in crystal traditions and is commonly associated with clarity, focus, and amplification.
That makes it an ideal starting point for a DIY bottle. Enjoy it on its own or use it as the foundation for other gemstones—the idea being that Clear Quartz beautifully complements and enhances whatever you decide to add.
Think of it as the blank canvas for your inu!.
What are inu! Crystal Jars?
Crystal Jars are ready-to-use gemstone blends created especially for inu!.
Instead of assembling a combination yourself, you can choose a professionally composed blend built around a particular theme or intention. VitaJuwel developed these combinations with experienced experts in gemstones and crystal healing, drawing on years of knowledge about how different stones traditionally complement one another.
Simply open your inu! chamber, add your chosen Crystal Jar blend, and you have an entirely new crystal water experience. The current collection includes blends such as FROM THE HEART, HARMONY, AMBER, VISION, YIN YANG, and 7 CHAKRAS.
Can I switch between different Crystal Jar blends?
Absolutely—and we hope you do.
One of the biggest advantages of inu! is that you’re never committed to a single gemstone combination. You might feel like one blend today and something completely different a few weeks from now.
Keep several Crystal Jars at home and change your stones depending on what inspires you. Your inu! can keep evolving with you instead of becoming another bottle you eventually get bored with.
What is the Flower of Life inside the bottle?
Between inu!’s gemstone chamber and the water chamber sits the Flower of Life—positioned exactly where the energy of the gemstones meets your water.
This ancient sacred-geometry symbol, formed from overlapping circles, has appeared across cultures for centuries and is traditionally associated with harmony, balance, and the interconnectedness of all life.
We integrated it into inu! very deliberately: while the gemstones below contribute their own subtle vibrations, the Flower of Life adds another energetic element of its own, helping to infuse and positively structure the water above.
It’s not just decoration. It’s part of the energetic architecture of inu!.
Do the gemstones ever touch my drinking water?
No. The crystal chamber is completely separate from the drinking chamber.
That was a very intentional design decision. Some gemstones may contain naturally occurring substances that aren’t suitable for water, while decorative stones can also be treated with wax, oil, resin, dyes, or other coatings.
With inu!, none of that enters the equation. Your gemstones stay where you can see and enjoy them, while your water remains completely separate.
Can I really use any gemstone in my inu!?
Because the stones are physically separated from the water, inu! gives you considerably more freedom than bottles that immerse crystals directly in your drink.
Still, choose stones that physically fit comfortably into the chamber and avoid anything excessively sharp, fragile, dusty, or likely to damage the glass.
For the easiest option, use genuine polished gemstones you already trust—or one of our Crystal Jars, which are specifically selected and composed for inu!.
Why is inu! made from borosilicate glass instead of plastic or stainless steel?
Because we want your water to taste like water.
inu! is made from high-density borosilicate glass. It’s chemically non-reactive, lead-free, and taste-neutral, so it won’t absorb flavors or add a plastic or metallic taste to your drink.
It’s also highly resistant to temperature changes, making it suitable for both cold and hot water.
And then there’s the obvious part: glass lets you actually see your water and your gemstones. With a bottle this beautiful, hiding everything behind stainless steel would rather miss the point.
What colors does the inu! bottle come in?
inu! was designed to be personal right down to the details.
Choose between different lid colors including Cloud White, Ocean Blue, Lava Grey, and Blossom Rose and pick the look that feels most like you.
Replacement lids are also available separately, so even the color of your bottle doesn’t have to stay the same forever.
That’s very much the inu! philosophy: why settle for one version when you can change it?
How much water does an inu! bottle hold?
Each inu! holds 16.9 fl. oz. / 500 ml, making it compact enough to carry every day while still giving you a generous personal serving of crystal water.
It’s a practical size for your desk, commute, yoga bag, travel, or simply keeping nearby as a reminder to drink more water throughout the day.
Can I put hot water in my inu!?
Yes. The bottle is made from thermal shock-resistant borosilicate glass and can handle both very cold and very hot water.
Just remember that the glass itself can become hot, so handle it accordingly and avoid sudden extreme temperature changes when the bottle is already very hot or cold.
How do I clean my inu! bottle and crystal chamber?
Regularly rinse the glass bottle with warm water and mild detergent and allow all components to dry thoroughly before reassembling.
The crystal chamber can be opened, which makes it easy to remove your stones whenever you want to clean or change them. Keeping the gemstone area dry and clean also gives you the perfect excuse to rearrange your blend every now and then.
If you’re using your own gemstones, follow any specific care recommendations for those stones separately.
Is inu! a good gift?
Especially for someone who loves crystals.
Unlike a bottle with one predetermined gemstone blend, inu! gives the recipient something to explore. They can start with the stones already included, add gemstones they own, receive new crystals from friends, or expand their collection with Crystal Jars over time.
You can even choose a lid color to match their style and add a Crystal Jar with a theme that feels particularly meaningful.
It’s less like giving someone a water bottle and more like giving them a crystal collection they can keep reinventing.
Why choose inu! instead of a VitaJuwel ViA bottle?
They’re two different approaches to the same fascination with crystal water.
Choose inu! if you love creativity, collecting gemstones, experimenting with your own combinations, and changing your bottle whenever inspiration strikes.
Choose ViA if you want VitaJuwel’s signature sealed GemPod system with professionally composed gemstone blends that you can exchange as complete units.
For the DIY crystal lover, though, there’s really nothing quite like inu!.
What’s the best way to get started with inu!?
Start simple.
Enjoy the gemstone that comes with your bottle first. Then add one stone that has meaning to you—or choose a Crystal Jar whose theme catches your attention. From there, experiment.
There’s no final version of an inu!. That’s precisely the point.
Fill it. Change it. Make it yours.
Learn more about VitaJuwel in our Journal
The ViA Difference - More than a Bottle
Buying a reusable water bottle is easy. Plastic, stainless steel, aluminum, copper, glass — the choices are endless. But once you use a bottle every day, you quickly notice something: the material makes a difference. In taste. In cleaning. In how it feels in your hand. And even in how much you actually enjoy drinking from it. That’s exactly why the VitaJuwel ViA bottle is much more than just a reusable water bottle. It combines premium glass, thoughtful design, and an interchangeable VitaJuwel GemPod to create a drinking experience all its own. It’s not simply about carrying water with you. It’s about enjoying it: pure in taste, hygienic, easy to clean — in a bottle you love using every day and don’t mind showing off. PLASTIC: LIGHT, PRACTICAL - BUT NOT ALWAYS TASTE-NEUTRAL Plastic bottles are convenient. They’re lightweight, durable, and affordable. Especially on the go, those are real advantages. But anyone who has used the same plastic bottle for a long time may also know the downside: odors and flavors can linger in the material, especially if you occasionally use the bottle for juice, tea, or other drinks. Plastic surfaces can also develop scratches over time, making them harder to keep perfectly clean. Modern high-quality plastics have come a long way. Still, for us, one question remains: Why drink water from plastic when you can enjoy it from glass? ViA is made from high-quality borosilicate glass. It is taste-neutral and does not absorb odors or flavors. Water tastes like water. Just as it should. STAINLESS STEEL: TOUGH AND PRACTICAL - BUT STILL METAL Stainless steel bottles are popular for good reason. They’re durable, long-lasting, and a great choice if you need something especially rugged. But there’s one difference you won’t find on a product specification sheet: the drinking experience. Some people notice a subtle metallic sensation when drinking from a metal bottle, especially with still water, where delicate taste differences are easier to detect. There’s another difference too: you can’t see what’s inside. With ViA, the opposite is true. The clear glass puts the water on display — its clarity, its movement, the gemstones inside. The bottle doesn’t hide the water. It makes it the centerpiece. COPPER: RICH IN TRADITION - BUT NOT NEUTRAL Copper bottles have gained plenty of attention in recent years and are often associated with Ayurvedic traditions. Copper, however, is a reactive metal. It can interact with liquids and release copper ions into them. That means what you put inside, how long it stays there, and how the bottle is cared for all matter. Acidic beverages, for example, are not suited to unlined copper vessels. And if your goal is to drink water as purely and neutrally as possible, you quickly return to a material that deliberately stays out of the way: glass. Glass does not add its own flavor to the water. That is one reason glass has long been valued wherever purity and material neutrality matter. ALUMINIUM: FEATHERLIGHT - BUT USUALLY COATED Aluminum scores points when weight matters, which is why it is common in sports and outdoor bottles. But in most aluminum bottles, the drink does not actually come into direct contact with the aluminum itself. The inside requires a coating that separates the liquid from the metal. That makes perfect technical sense, but it also means the quality and condition of the inner coating matter just as much as the aluminum itself. With glass, things are much simpler. What you see is what you drink from. No hidden inner coating. No concealed surface. GLASS: SURPRISINGLY SIMPLE Glass has one major advantage that is easy to underestimate: it stays remarkably neutral around water. It does not absorb flavors. It does not add its own taste. Its smooth, non-porous surface is easy to clean thoroughly and does not stain easily during normal use. And then there is something that is harder to measure: Water simply looks better in glass. That might sound superficial at first. It isn’t necessarily. But we don’t drink only because we are thirsty. Our surroundings, our habits, and the objects we use every day influence what we enjoy doing. A beautiful bottle on your desk reminds you to drink. A bottle you enjoy picking up tends to get used more often. Design can therefore have a surprisingly practical effect. SO WHY NOT JUST ANY GLASS BOTTLE? This is where ViA begins. Because it isn’t simply a glass bottle with a VitaJuwel logo on it. It was designed around the water itself. The glass keeps the contents visible and the taste pure. The opening at the top and the removable bottom make the bottle exceptionally accessible and easy to clean thoroughly. And of course, there’s something an ordinary glass bottle simply doesn’t offer: the interchangeable VitaJuwel GemPod. Carefully selected gemstone blends are safely sealed inside the pod. The gemstones themselves never come into direct contact with the drinking water. You can switch blends while keeping the same bottle, giving your ViA an entirely new character whenever you feel like it. WELLNESS today. Maybe LOVE & DEVOTION, HAPPINESS, or SHINE BRIGHT tomorrow. One bottle. Many possibilities. ViA: A BOTTLE MADE TO STAY Sustainability deserves a closer look too. The most sustainable bottle is not automatically the one made from the material with the best environmental profile on paper. More than anything, it is the bottle you actually keep using. A reusable ViA can replace countless disposable bottles over time. The glass is durable, the design is timeless, and individual components can be used or replaced separately. And because the GemPods are interchangeable, discovering a new gemstone blend does not mean buying an entirely new bottle. That makes far more sense to us than throwing away and starting over. IN THE END, IT'S ABOUT MORE THAN MATERIAL A good stainless steel bottle can be an excellent choice. A lightweight plastic bottle may be exactly right for the gym. And if every ounce matters on a long hike, glass probably won’t be your first choice. ViA doesn’t need to be the most practical bottle for every possible situation. It was created for people who care about the quality of their everyday drinking experience. For people who want their water to taste clean and unaltered. Who would rather use one beautiful bottle for years than keep buying the next one. And who think that something they pick up every single day should look pretty damn good while doing its job. Then there is the one thing that makes ViA truly different: the combination of water, glass, and gemstones. You can see it. You can change the blend. And the difference in the water? That’s something you should taste for yourself.
When Water Meets Gemstones
Water is H₂O. Chemically speaking, that sounds pretty straightforward. And yet, few substances are as unusual, dynamic, and endlessly fascinating as water. Water responds to its surroundings. To pressure and temperature. To the substances it comes into contact with. And, of course, to the rocks and minerals it flows through. That’s where things get especially interesting for us: What influence can gemstones have on water? WATER IS CONSTANTLY CHANGING If you’ve ever tasted water straight from a mountain spring, you know the difference. It often tastes fresh, smooth, almost alive. Of course, spring water is still primarily H₂O. So what makes it feel so different? On its journey through nature, water is in constant contact with its environment. It flows across rocks, moves through layers of soil and stone, and absorbs minerals along the way. Temperature, movement, pressure, and countless other outside influences can all affect its properties. In our article “The Nature of Water", we take a closer look at this fascinating side of water — and at why there is far more to it than a simple chemical formula. One question is especially intriguing: What happens when water is exposed to gemstones? A CLOSER LOOK AT ROSE QUARTZ In 2012, the Institute for Flow Sciences in Herrischried, Germany, conducted a series of experiments examining the influence of rose quartz on water. One of the methods used was the drop-picture method, developed from the work of flow researcher Theodor Schwenk. It makes patterns and movements within water samples visible, allowing researchers to compare how different samples behave. The results were striking. The drop pictures of water exposed to rose quartz appeared more vivid and richly structured than those of the untreated control sample. Differences were also observed in water samples that had previously been exposed to substances such as nitrate or chlorine. And then came perhaps the most immediately relatable part: the sensory test. Participants described the rose-quartz water as warming, strengthening, and invigorating. Coincidence? A measurable effect? Or is there more to the age-old relationship between water and stone than we currently understand? Questions like these have fascinated us at VitaJuwel from the very beginning. THE IDEA BEHIND VITAJUWEL In a way, we didn’t invent anything new. Nature had the idea first. For millions of years, spring water has traveled through layers of rock and stone, encountering an incredible variety of minerals along the way. Our idea was simple: What if we could bring a little of that principle into the water we drink every day? That idea became VitaJuwel. Our carefully selected gemstones are combined into unique blends and securely sealed away from the drinking water itself. The stones never touch the water. And yet, there is one thing many people notice immediately when they try it: The water tastes different. Often smoother. Fresher. Simply more enjoyable to drink. Naturally, we wanted to know whether that difference could do more than surprise the palate. Could it also be investigated? WHAT HAPPENS TO VITAJUWEL WATER? Back in 2008, VitaJuwel-treated water was examined in a comparative study by the Hagalis Institute. Regular tap water was analyzed before and after exposure to VitaJuwel. Within the methods used by the institute, differences were observed across several parameters, as well as in the overall assessment of the water samples. The institute concluded that the treated sample showed a noticeable improvement compared with the original tap water and, in its overall evaluation, moved closer to the characteristics it associated with natural spring water. Among the observed changes were differences in oxygen levels, pH, and conductivity. Imaging methods used in the analysis also showed visible differences between the samples. For us, the most exciting part wasn’t simply getting an answer. It was having even more reason to keep asking questions. To keep exploring. And to never take water for granted. IN THE END, THE DIFFERENCE IS IN THE TASTE You can read countless studies about water. You can dive into chemistry, examine flow patterns, compare laboratory results, and explore different scientific approaches. Or you can start with something wonderfully simple: Taste it. Start with the VitaJuwel gemstone water. Take a sip, notice the taste and mouthfeel — then compare it directly with the same water before it was exposed to the gemstone blend. Close your eyes. And decide for yourself. Because perhaps the most fascinating discovery about water doesn’t begin in a laboratory. It begins on your tongue. Tropfbildmethode Strömungsinstitut, Herrischried, Deutschland Kristallanalyse VitaJuwel, Hagalis AG, Überlingen, Deutschland
The Nature of Water
It looks so simple. Clear, colorless, completely ordinary. And yet water is one of the most extraordinary substances on our planet. We drink it every day, shower in it, cook with it, and our own bodies are largely made of it. Still, water continues to puzzle scientists. Because this tiny molecule called H₂O behaves in ways that are anything but ordinary. A SUBSTANCE FULL OF SURPRISES Water expands when it freezes. It can store remarkable amounts of heat and is extremely difficult to compress. These unusual physical properties are not just scientific curiosities — some of them are essential to life as we know it. And perhaps most fascinating of all: even after centuries of research, not every characteristic of water is fully understood. So it may be worth taking a closer look. Because water is not simply water. EVERY WATER HAS A STORY Imagine a single raindrop. It falls onto a mountainside, seeps into the ground, and begins a journey that may last months, years, or far longer. Along the way, it passes through layers of soil and rock, dissolves minerals, is naturally filtered, and eventually emerges again as a spring. What flows from the mountain at the end of that journey carries traces of where it has been. The composition of spring water therefore depends heavily on its origin, the geological layers it has travelled through, and the influences it encounters along the way. Agriculture, industry, and other human activity can leave their mark as well. From a chemical perspective, natural water is therefore almost never simply pure H₂O. And that is exactly what makes it so interesting. WATER LOVES TO MOVE Anyone who has ever drunk directly from a fresh spring may know the feeling: the water seems crisp, vibrant, almost surprisingly light. In nature, water is constantly in motion. It flows over rocks, falls, swirls, accelerates, slows down, and changes direction again and again. That is why some researchers do not only look at what water contains, but also at how it moves. One method developed to explore this is the so-called drop-picture method, which makes flow patterns in water visible and allows them to be compared. Such approaches are not part of standard chemical drinking-water analysis, and their interpretation remains scientifically debated. Still, they reveal how broad the question of water quality can become. Not only: What is in the water? But also: How does this water behave? AN AMAZINGLY RECEPTIVE SUBSTANCE One of water’s most remarkable qualities is its extraordinary ability to dissolve other substances. Chemically pure water is virtually absent in nature. The moment water comes into contact with its surroundings, it begins to interact with them — dissolving minerals from rocks, salts, gases, and countless other substances. Water is also exceptionally good at absorbing, storing, and transporting heat. This openness to its environment makes water one of nature’s great mediators. It transports nutrients, supports metabolic processes, regulates temperature, and plays a central role in transport and elimination processes throughout the human body. Water is almost never truly still. And that constant interaction is part of what makes it so fascinating. WHY SPRING WATER HAS FASCINATED PEOPLE FOR CENTURIES Long before modern laboratories existed, water already played an important role in ideas about health and well-being across many cultures. Healing springs, drinking cures, cold-water treatments, and bathing traditions have existed for centuries. Water also plays an important role in Traditional Chinese Medicine, where health is closely associated with the free flow of the life force known as Qi. In this view, the human body can be compared to a landscape that depends on movement and circulation to remain healthy. Traditional concepts like these are not the same as modern scientific models. But they reveal something interesting: For a very long time, people have seen water as far more than something that simply quenches thirst. They have connected it with vitality, movement, and life itself. WHAT ABOUT "STRUCTURED" OR "LIVING" WATER? Terms such as living water, water structure, and internal order appear increasingly often today. This is where careful distinction becomes important. It is well established that water molecules constantly interact through hydrogen bonds and that their arrangement changes continuously. Broader ideas about permanently “structured” water or specific health effects associated with such structures, however, remain scientifically controversial. And this is where some of the most intriguing questions begin. How do movement, temperature, minerals, surfaces, and other external influences affect the behavior of water? Which changes are temporary? Which can be measured? And which of them actually matter biologically? There is still much we do not know. MAYBE WE HAVE STARTED TAKING WATER FOR GRANTED We turn on the tap — and there it is. Water is always available. And perhaps that is exactly why we think about it so rarely. Yet it is our most important everyday beverage and, at the same time, one of the most fascinating substances we know. Water travels through landscapes. It dissolves substances. It stores heat. It forms currents and vortices. It constantly changes its surroundings while being changed by them in return. So the simple formula H₂O tells only part of the story. Perhaps seeing water differently begins with one simple realization: that the glass in front of us is anything but ordinary. And the more you learn about water, the harder it becomes to ever see it as “just water” again.