Does Water "Remember" Your Thoughts? What the Masaru Emoto Experiments Actually Show — and What Real Water Science Says

You may have come across the claim that water changes shape depending on the words, music, or emotions directed at it — usually illustrated with photos of pretty and "ugly" ice crystals attributed to Dr. Masaru Emoto, a Japanese author who popularised the idea in the late 1990s. It's a striking, shareable story. However, it is also not supported by credible scientific evidence, and we think it's important to say that plainly before going any further.

As a company that sells water filtration equipment, we take water quality seriously, which means we also take water science seriously. 

This article explains what Emoto actually claimed, why the scientific community rejects it, and what is genuinely known about what makes water safe and healthy to drink.

Editorial note: This article was updated to correct claims from an earlier version of this post that presented Dr. Emoto's ideas — and related concepts such as "water memory," "structured water," and water "energising" devices — as established science. They are not. We've rewritten the piece to clearly separate anecdote and folklore from peer-reviewed research, in line with our commitment to giving customers accurate, evidence-based information.

Masaru Emoto (1943–2014) was a Japanese author and entrepreneur, not a water chemist or physicist. Starting in the late 1990s, he published photographs of ice crystals formed from water samples that had been exposed to spoken words, written labels, music, or prayer. He claimed that water exposed to positive stimuli ("love," "gratitude," classical music) froze into symmetrical, "beautiful" crystals, while water exposed to negative stimuli ("hate," heavy metal music) froze into asymmetrical or "ugly" ones.

These images spread widely, especially in wellness and spirituality communities, and inspired the broader "water memory" and "structured water" movements.

Emoto's studies were never published in a reputable, peer-reviewed scientific journal with the methodology needed to support his conclusions. The core problems, as identified by chemists and physicists who have reviewed his work, include:

• No blinding. Emoto and his team knew which sample corresponded to which "treatment" before selecting which crystal photographs to publish, creating obvious potential for unconscious bias.
• Selective reporting. Out of many crystals photographed per sample, only a small, subjectively chosen number were shown to the public — an approach that lets a researcher pick the result that fits the story.
• No controlled, blinded replication. When water memory claims have been tested under proper double-blind conditions, including a widely cited million-dollar challenge and peer-reviewed replication attempts, no reliable effect has been found.
• No known physical mechanism. Ice crystal shape is well explained by conventional physics: it depends on temperature, freezing rate, trace mineral and gas content, and container surface, not on words or intentions. There is no accepted mechanism by which spoken language or emotion could imprint a lasting molecular structure on water.

For these reasons, water memory and related claims are considered pseudoscience by the mainstream chemistry and physics community, and organisations that review health claims, including consumer protection and scientific bodies, have consistently found no credible evidence for them.

We're including this context deliberately. As a trusted water filtration company in Australia, the team at My Water Filter has a responsibility to be a trustworthy source on water, and that means being upfront about which claims are backed by science and which are not, even when the latter make for a nicer story.

It's worth separating two very different ideas that sometimes get bundled together:

1. The claim that water physically "remembers" emotions or words — not supported by evidence, as above.
2. The idea that mindfulness, gratitude, and reducing stress support wellbeing — this is genuinely well supported by psychological research, just not because of any effect on water molecules. If pausing to appreciate a glass of water helps you slow down and hydrate more consciously, that's a reasonable personal habit. It just isn't a claim about the water itself changing.

We're happy to acknowledge the second point while being clear that it's a statement about human psychology, not water chemistry.

If your goal is genuinely healthier water, the evidence-based factors are well established and worth focusing on:

This is the single biggest lever for water safety. Depending on your water source, tap water can carry chlorine and chlorine by-products, heavy metals (like lead from old pipework), pesticide residues, PFAS ("forever chemicals"), and microplastics. Independent water testing and filter certification (for example, NSF/ANSI standards) are the credible way to confirm a filter actually removes what it claims to.

Common filtration approaches include:

• Benchtop (countertop) filters — a straightforward option for renters or anyone wanting an easy setup without plumbing changes.
• Undersink filters — plumbed directly into your existing tap for filtered water on demand.
• Reverse osmosis systems — generally regarded as one of the most thorough filtration methods, capable of removing a very broad range of dissolved contaminants.

Water naturally contains dissolved minerals like calcium and magnesium, which affect taste and can contribute modestly to daily mineral intake.

How water is stored matters more than most people realise: UV exposure, container material (glass vs. certain plastics), and temperature can all affect taste and, in some cases, safety over time. This is basic, well-documented chemistry, not an energetic property.

The Emoto photographs are a striking piece of pop culture, and it's understandable why they resonated with so many people. But as a source people rely on for information about water and health, we think the responsible position is this: there is no credible scientific evidence that thoughts, words, or music change the physical structure of water. What is well supported is that removing contaminants through properly certified filtration is the most reliable, evidence-based way to improve the water you drink.

If you'd like to think about your water more intentionally, we'd suggest channelling that instinct into practical steps, such as checking what's actually in your tap water, choosing a filter certified to remove it, and staying hydrated, rather than devices or practices that promise energetic effects science hasn't been able to verify.