Classic Insulated Water Bottle
18/8 food-grade stainless steel with no plastic lining. Klean Kanteen's bottles are certified by the Clean Production Action BizNGO program.
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Plastic water bottles leach microplastics and BPA into your water, especially in heat. Studies show a single plastic bottle can shed tens of thousands of microplastic particles per liter. You drink from this every day.
Why We Recommend This Product
The interior is 100% stainless steel — no plastic coating, no BPA, no leaching. The company discloses full material sourcing.
Chemical & Health Analysis
Antimony trioxide (PET catalyst)
Used in PET bottle manufacturing. Leaches into water stored in PET bottles, especially when exposed to heat. Classified as a possible human carcinogen by the IARC.
Microplastics (PET particles)
A 2024 study found that a single 1-liter PET water bottle releases an average of 240,000 microplastic particles into the water. These particles have been detected in human blood, lungs, and brain tissue.
Acetaldehyde
A byproduct of PET degradation. Leaches into water over time, particularly when bottles are stored in warm environments or reused.
All health claims are based on published, peer-reviewed research. PFR cites primary sources from the NIH, WHO, IARC, and peer-reviewed journals. This information is for educational purposes and does not constitute medical advice.
