Experiments & Reports
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What Are Reusable Water Bottles Made Of? Data From 1,296 Bottles
I analyzed 1,296 reusable water bottle configurations from 470 brands to see which materials are most common, how prices and empty weights compare, and how often brands identify the exact plastic or steel type. Stainless steel and plastic led the dataset.
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What We Know About PFAS in Water Bottles
I wanted to answer what sounds like a simple question: Can a reusable water bottle put PFAS into the water you drink? The first study I looked for was obvious. Take ordinary reusable bottles, fill them with clean water, wait, test the water for PFAS, and compare it with the starting water. I couldn’t find…
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I Analyzed 3,163 Hydrogen Water Comments. Here’s What People Actually Report
I’ve been drinking hydrogen water since 2023 and spent more than $1,000 on hydrogen bottles, so I’ve had plenty of time to see how differently people react to the whole subject. Some say it noticeably helped their energy or recovery. Others think the entire category is a scam. I have a separate report on the…
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Why Are Hydrogen Water Bottles So Expensive? I Followed the Money
I kept seeing the same reactions to hydrogen water bottles online: “Not worth the price”. “Overpriced gimmicks”. “Cheap Chinese bottles with huge markups”. I get it. In my strict U.S. price sample, the median was $139.99, and some premium hydrogen bottles sell for $200 or more. I've spent more than $1,000 testing them myself, and…
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Are Phthalates in Reusable Water Bottles a Real Problem?
If you’ve started checking what your water bottle is made of, you’ve probably seen the words BPA-free everywhere. Phthalates? Much less often. So I went looking. I reviewed the available reusable-bottle research, worked through a much larger body of supporting evidence, and used my separate 150-brand chemical safety transparency audit to see what bottle companies…
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Lead in Water Bottles: What the Research Actually Shows
Lead in water bottles went from a niche manufacturing detail to an internet panic almost overnight, mostly thanks to viral videos of people swabbing Stanley cups for lead. The problem is that finding lead somewhere in a bottle is not the same as finding lead in the water you drink from it. That distinction gets…
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Microplastics in Reusable Bottles: What the Headlines Get Wrong
A few headlines about microplastics have stuck with me. TIME: “Microplastics in Bottled Water at Least 10 Times Worse Than Once Thought.” The Washington Post: “Here’s what you’re really swallowing when you drink bottled water.” NPR: “Researchers find a massive number of plastic particles in bottled water.” If you own a reusable plastic bottle, your…
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BPA and Other Bisphenols in Water Bottles: What the Research Shows
If your water bottle says BPA-free, that is a good thing. I used to read that badge almost like a full stop: BPA gone, question answered, move on. After this project, I do not read it that way anymore. BPA is only one member of a much larger family called bisphenols. To see what that…
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How Transparent Are Water Bottle Brands About Chemical Safety?
I reviewed public chemical claims from 150 reusable water bottle brands. Search exact wording, product scope, evidence, and WBA transparency scores—not safety ratings.
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Does Hydrogen Water Work? What 54 Human Trials and 50 Brands Actually Show
I’ve been drinking hydrogen water since 2023, and I test hydrogen water bottles as part of my job. I can measure whether a bottle actually puts dissolved hydrogen into water, but that still leaves the much bigger question: Does drinking hydrogen water actually help people? To find out, I went through the human research and…