Dr. Brown's Natural Flow Options+ (Glass)
The glass version of the "#1 pediatrician recommended" bottle - a borosilicate glass body, but the same signature plastic vent still sits submerged in the milk on every feed.
The verdict: Minimal plastic contact
Switching to the glass Options+ upgrades the body to borosilicate glass, but the feature Dr. Brown's is built on stays the same: the anti-colic vent is a multi-piece polypropylene insert and reservoir tube that assembles inside the bottle and sits submerged in the milk on every feed. The nipple is silicone and the collar and cap are plastic. So the glass body genuinely removes the polypropylene bottle wall, but the plastic vent in the milk keeps it at minimal-contact - a real step up from the all-plastic version, not a plastic-free bottle.
Verification: Manufacturer confirmed · Last reviewed
What it's made of
| Part | Material | Food contact |
|---|---|---|
| bottle body heat- and thermal-shock-resistant borosilicate glass on the glass Options+ | Borosilicate Glass | Yes primary |
| internal vent insert the same BPA-free polypropylene vent insert as the plastic version, seated inside the bottle and submerged in the milk | Polypropylene PP, #5 | Yes primary |
| internal reservoir tube BPA-free polypropylene tube that runs down into the milk to vent air | Polypropylene PP, #5 | Yes primary |
| nipple soft silicone nipple | Silicone | Yes primary |
| collar / screw ring BPA-free polypropylene ring that seats the nipple over the milk | Polypropylene PP, #5 | Yes incidental |
| travel disc / cap BPA-free polypropylene cap and travel disc | Polypropylene PP, #5 | No |
The glass Options+ is the material upgrade a lot of Dr. Brown's fans reach for: same clinically-backed anti-colic venting, but with a borosilicate glass body instead of polypropylene. It assembles the same multi-piece vent inside the bottle before every feed, then screws the silicone nipple on with a plastic collar. Sold narrow and wide-neck, in 4oz and 8oz, some with a silicone sleeve.
Pros
- Borosilicate glass body replaces the polypropylene bottle wall
- Same effective, widely pediatrician-recommended anti-colic venting
- Everything is BPA-free and well documented, with huge parts availability
Cons
- Multi-piece plastic vent must be scrubbed and sterilized constantly
- Glass body is heavier and breakable; many daycares ban glass bottles
Categories: Baby Bottles
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://drbrownsbaby.com/collections/glass-bottles Dr. Brown's glass Options+ bottles use a borosilicate glass body with the same internal anti-colic vent system
- manufacturer https://drbrownsbaby.com/products/dr-browns-options-replacement-vent-kit-narrow-8oz replacement vent kit is BPA-free polypropylene inserts and reservoirs that assemble inside the bottle - shared with the glass version
- review https://www.amazon.com/Dr-Browns-Natural-Options-Narrow/dp/B07WY1FH7N glass Options+ narrow bottle listing - borosilicate glass bottle with the green internal vent and silicone nipple
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