Dr Brown's Options+ 270ml Bottle: Blue Twin Pack Setup Guide
By Dr Browns | Published: 2026-11-03
Category: How-to Guides
Learn how to assemble the Dr Brown's Options+ 270ml Blue Twin Pack step by step, with vent-system checkpoints to avoid leaks and keep feeds calm.
Quick answer
Assemble each Dr Brown's Options+ 270ml bottle by seating the internal vent in the bottle, filling to the 270ml line, then adding the teat, collar and cap in that order. Check the vent is fully seated before every feed to keep air moving away from the milk.
Why the 270ml size suits older babies
The 270ml capacity gives growing babies more milk per feed, which often means fewer refills and less interruption. The twin pack also means one bottle can be in use while the other is clean and ready.
The same vent design that helps with colic adds parts to assemble, so a consistent order matters more as feeds get larger.
When to skip the vent
The Options+ vent system is designed to channel air away from the feed, but it works best when the vent is clean and correctly seated. If you are unsure whether the vent is fitted right, reassemble rather than feed, because a loose vent can cause leaks or bubbles.
If your baby is feeding well and you want fewer parts to wash, the vent can be removed, but you lose the anti-colic benefit. Decide before assembly so you do not have to take the bottle apart mid-feed.
How to assemble the Options+ 270ml bottle
- Wash and inspect all parts: Separate the bottle, vent insert, teat, collar and cap. Wash each part in warm soapy water and check the teat and vent for cracks or blockages before assembly. A blocked or split vent is the most common cause of poor vent performance, so inspect it every time.
- Seat the internal vent: Push the vent tube firmly into the base of the bottle until it sits flat and cannot wobble. The vent should stand upright inside the bottle. If the vent feels loose, reseat it; a loose vent can leak or let air into the feed.
- Fill to the 270ml line: Pour prepared milk or formula into the bottle up to the 270ml mark, leaving room below the collar threads. Overfilling above the line can push milk into the vent and cause bubbles.
- Fit the teat and collar: Place the Level 1 teat over the bottle neck, then screw the collar on firmly but do not overtighten. Overtightening can distort the teat and change the flow rate.
- Cap and test: Snap on the cap, then turn the bottle upside down for a few seconds to check for leaks around the collar and vent. A quick leak check before feeding saves a change of clothes later.
Product facts
- Dr Brown's Options+ Anti-Colic Baby Bottle Blue Twin Pack 270ml: The Dr Brown's Options+ range features a unique internal vent system that channels air away from baby's feed. That vent is the part you must seat correctly during assembly, so air is routed away from the milk rather than into it.
Dr Brown's Options+ Anti-Colic Baby Bottle Blue Twin Pack 270ml - Dr Brown's Options+ Anti-Colic Baby Bottle Blue Twin Pack 270ml: The twin pack includes two blue 9 oz/270 ml Options+ bottles with two Level 1 teats. You can assemble one bottle while the other is being cleaned, and the Level 1 teat gives a starting flow rate for the 270ml size.
