Plastic-free water bottles, checked part by part
· generated from the database
Short answer: none of the 15 water bottles we checked is confirmed plastic-free in every part yet. The closest is 27oz Reflect with Bamboo Cap at 83/100.
The ranking
| # | Product | Score | Non-plastic parts | What the listing states |
|---|---|---|---|---|
| 1 | 27oz Reflect with Bamboo Cap | 83/100 at 80% confidence | 2 of 3 | seal: food-grade silicone; body: 18/8 stainless steel; cap: sustainably harvested bamboo |
| 2 | Original Bottle 25oz (S'well) | 75/100 at 80% confidence | 1 of 2 | body: steel; handle: silicone |
| 3 | 12oz Kid's Classic with Flip Seal Sport Cap (Klean Kanteen) | 67/100 at 80% confidence | 2 of 3 | body: 90% post-consumer recycled 18/8 stainles; cap: bpa-free plastic; straw: stainless steel |
| 4 | Bouteille Active Inox (Qwetch) | 63/100 at 80% confidence | 2 of 4 | body: acier inoxydable 304 (18/8) recyclé à 90; cap end: acier inoxydable 304 (18/8) recyclé à 90; gasket: silicone |
| 5 | Water Bottle Classic 18 oz (Klean Kanteen) | 63/100 at 80% confidence | 2 of 4 | bottle body: stainless steel; sport cap: bpa-free plastic; spout: silicone |
| 6 | Glass Water Bottle by Soma (Soma) | 63/100 at 80% confidence | 2 of 4 | silicone sleeve: silicone; inner component: abs plastic; bottle: borosilicate glass |
| 7 | Syndicate 20oz Glass Water Bottle (Ello) | 63/100 at 75% confidence | 2 of 4 | body: glass; sleeve: fda food-grade silicone; mouth piece: glass |
| 8 | Package Free Water Bottle | 50/100 at 80% confidence | 1 of 2 | body: stainless steel; cap: plastic |
| 9 | NFL Summit Insulated Water Bottle with Straw Lid (Simple Modern) | 50/100 at 80% confidence | 1 of 2 | bottle: stainless steel; straw lid: bpa-free plastic |
| 10 | 27oz Wide with Loop Cap | 50/100 at 80% confidence | 1 of 2 | body: 90% post-consumer recycled 18/8 stainles; cap: bpa-free |
| 11 | 27oz Classic with Flip Seal Sport Cap (Klean Kanteen) | 50/100 at 75% confidence | 2 of 4 | coating: klean coat®; body: 90% post-consumer recycled 18/8 stainles; cap: bpa-free |
| 12 | 18oz Classic with Flip Seal Sport Cap | 50/100 at 75% confidence | 2 of 4 | body: 90% post-consumer recycled 18/8 stainles; cap: bpa-free; straw: stainless steel |
| 13 | The IceFlow Flip Straw 2.0 Bottle 36 oz (Stanley) | 50/100 at 50% confidence | 2 of 4 | body: 90% 18/8 recycled stainless steel; lid: stainless steel |
| 14 | Mover 18oz Ash (Purist) | 33/100 at 33% confidence | 1 of 3 | body: 316 surgical-grade stainless steel; inner barrier: natural compound |
| 15 | FreeSip Sway (Owala) | 20/100 at 40% confidence | 1 of 5 | bottle: stainless steel; lid: bpa, lead, and phthalate-free |
Where plastic shows up in water bottles
- Cap: plastic in 5 of the 6 listings that state it.
- Sport cap: plastic in 1 of the 1 listings that state it.
- Lid: plastic in 1 of the 5 listings that state it.
Those are the parts to read closely on any listing before you buy.
What the research says
The researchers found that, on average, a liter of bottled water included about 240,000 tiny pieces of plastic.
Source: National Institutes of Health (NIH), 2024. Quoted verbatim.
They found that on average, a liter contained some 240,000 detectable plastic fragments—10 to 100 times greater than previous estimates, which were based mainly on larger sizes.
Source: Lamont-Doherty Earth Observatory / Columbia University, 2024. Quoted verbatim.
How we checked
Every material above is quoted from the seller's own listing; nothing is inferred. Parts a listing does not state count as unknown and lower the score. The full method. Browse every product: Water bottles.