Best Plastic-Free Baby Bottles
Last reviewed September 2026
Bottles for formula and breastmilk feeding.
The short answer
Pura Kiki is the only bottle here with no plastic at all - steel body, steel collar, and a silicone top - and the trade is that you can't see how much milk is left. If you want glass, the honest thing to know is that nearly every glass bottle still screws shut with a plastic ring at the seal: the Evenflo Balance is the cheap, everywhere-available one, and Philips Avent pairs glass with the most widely liked nipple. HEVEA is the option for avoiding silicone entirely, with a 100% natural rubber nipple, though rubber is a latex and needs replacing more often. Mason Bottle is the budget route: glass, steel, silicone.
Why plastic matters in baby bottles
The highest-stakes category on the site: research found polypropylene baby bottles release millions of microplastic particles per liter during formula prep, with hot water and sterilization multiplying release. Infants fed from PP bottles may have the highest microplastic exposure of any group. Glass and steel alternatives are mature and affordable - this swap is pure upside.
What to look for in baby bottles
- Glass or stainless body; the nipple will be silicone or natural rubber - that's unavoidable and fine for most
- Natural rubber nipples are the zero-silicone option (watch latex allergy)
- Check the collar/ring material - often plastic even on glass bottles
- Watch for an internal plastic vent (Dr. Brown's) - it sits submerged in the milk even on the glass version
- Silicone sleeves solve the glass-drop problem
- Many daycares BAN glass bottles - a real constraint that pushes parents to stainless or silicone
- For unbreakability, parents actually cite stainless or thick-glass Evenflo Balance+ - not just soft all-silicone bottles
- Compatibility with pumps/warmers is a real constraint for parents
Recommended baby bottles
Every product here we'd actually suggest — best-in-class picks first, then the rest by how plastic-free they are.
Kiki
The rare 100% plastic-free bottle system - 18/8 stainless body and steel collar, only the interchangeable top is medical-grade silicone.
Mason Jar Bottle System
Turns a regular-mouth glass mason jar into a bottle or sippy - liquid only ever touches glass, steel, and silicone.
Nursh Silicone Pouch Bottle
An air-free bottle where the milk only ever touches a food-grade silicone pouch and silicone nipple - the plastic shell it clips into never reaches the drink.
Balance+ Wide Neck Glass
An inexpensive, widely-available glass bottle with a silicone nipple and a one-piece silicone vent - the non-boutique glass bottle real parents reach for, held back only by a plastic collar and cap.
Glass Baby Bottle with Silicone Sleeve
Borosilicate glass with a grippy silicone sleeve - but the cap, ring, and stopper are polypropylene that touches the milk path.
Natural Response (Glass)
The glass version of the world's most common bottle - a borosilicate glass body with the well-liked silicone nipple, let down only by a plastic screw ring at the seal.
Plastic-Free Glass Baby Bottle
Borosilicate glass with a 100% natural rubber nipple - the zero-silicone dream, undercut by a polypropylene screw ring and cap.
SofTouch Glass
A borosilicate glass bottle carrying Pigeon's celebrated breast-like silicone nipple - bought for the nipple more than for being a low-plastic vessel, with a plastic nipple ring at the seal.
| Product | Rating | Touches your food | Price | Made in |
|---|---|---|---|---|
 Pura Kiki Best Overall / Least Plastic | Silicone ·Stainless Steel | $ | China | |
 Mason Bottle Mason Jar Bottle System Best Budget / DIY | Silicone ·Soda-Lime Glass ·Stainless Steel | $ | USA | |
 Boon Nursh Silicone Pouch Bottle Best If Glass Is Banned (Silicone) | Silicone | $ | China | |
 Evenflo Balance+ Wide Neck Glass Best Glass (What Parents Actually Buy) | Plastic ·Silicone ·Tempered Glass | $$ | Thailand | |
 Lifefactory Glass Baby Bottle with Silicone Sleeve Also Available Everywhere | Polypropylene ·Silicone ·Borosilicate Glass | $ | France | |
 Philips Avent Natural Response (Glass) Best Mainstream Glass | Plastic ·Silicone ·Borosilicate Glass | $ | USA | |
 HEVEA Plastic-Free Glass Baby Bottle Best Natural Rubber Nipple | Polypropylene ·Borosilicate Glass ·Natural Rubber / Latex | $$ | Malaysia | |
| Plastic ·Silicone ·Borosilicate Glass | $ | Japan |
Baby bottles to avoid
Popular options that look plastic-free but aren't — and whole categories worth skipping.
Natursutten Anti-Colic Glass Baby Bottle
Glass body and natural-rubber nipple, but the anti-colic double valve is polypropylene sitting right in the milk path.
Dr. Brown's Natural Flow Options+ (Glass)
The glass body doesn't fix the core issue - the plastic anti-colic vent still sits in the milk. For a low-plastic bottle, choose the Pura Kiki or a glass bottle without an internal vent.
Tommee Tippee Closer to Nature (Plastic)
For a plastic-free milk path, choose the Pura Kiki (steel body and collar) or a glass bottle with a silicone nipple.
Philips Avent Natural (Plastic)
For a plastic-free milk path, choose the Pura Kiki (steel body and collar) or a glass bottle with a silicone nipple.
Dr. Brown's Natural Flow Options+ (Plastic)
For a low-plastic bottle, choose the Pura Kiki (steel body and steel collar) - the internal plastic vent is exactly what to avoid.
Evenflo Classic Glass
An inexpensive, genuinely glass classic - but the standard cap and nipple collar/ring are plastic, and modern sets ship a plastic ring plus silicone nipple. Fine and affordable, but the plastic ring in the milk path keeps it out of the top picks; the mason-jar or steel systems do the same job without a plastic collar.
Common questions about baby bottles
Is there a fully plastic-free option for baby bottles?
Not completely. None of the 8 baby bottles we recommend is free of both plastic and silicone. Pura Kiki, Mason Bottle Mason Jar Bottle System and Boon Nursh Silicone Pouch Bottle come closest, being plastic-free apart from silicone parts such as seals and gaskets.
Which baby bottles do you recommend most?
Of the 8 baby bottles we recommend, Pura Kiki takes Best Overall / Least Plastic, Mason Bottle Mason Jar Bottle System takes Best Budget / DIY and Boon Nursh Silicone Pouch Bottle takes Best If Glass Is Banned (Silicone).
Which baby bottles should you avoid?
Among the baby bottles we have reviewed, we do not recommend Natursutten Anti-Colic Glass Baby Bottle, Dr. Brown's Natural Flow Options+ (Glass), Tommee Tippee Closer to Nature (Plastic), Philips Avent Natural (Plastic) and Dr. Brown's Natural Flow Options+ (Plastic). We also suggest skipping Evenflo Classic Glass.
Related reading
Is silicone actually safe? What the research says
Silicone sits in the awkward middle of plastic-free living — not quite plastic, not quite inert. What migrates out of…
Plastic-free myths: what's true, what's marketing, what's overblown
BPA-free doesn't mean safe, "plastic-free" labels often aren't, and some scary claims don't hold up either. Eight…