Dr Brown's Newborn Feeding Set: Bottles and Parts Explained
By Dr Browns | Published: 2026-10-31
Category: How-to Guides
Learn what's inside the Dr Brown's newborn feeding set and follow a step-by-step guide to assembling the wide-neck bottle with the anti-colic vent system.
Quick answer
Assemble the Dr Brown's newborn feeding set by inserting the internal vent system into the wide-neck bottle, filling with milk, and attaching the nipple and collar. Hand-wash all parts before first use and check the vent parts are fully seated to avoid leaks.
Why the vent system changes your assembly routine
Unlike a standard bottle, the Dr Brown's Options+ wide-neck bottle uses an internal vent that runs from the nipple down through the milk. This vent is clinically proven to reduce colic and decrease spit-up, burping, and gas, but it also means more parts to assemble and clean. Getting the order right matters: if the vent components aren't seated correctly, you'll see leaks or the vent won't work as intended.
The set includes multiple bottle sizes, so you can match the bottle to your baby's feed volume. Start with the smallest bottle for newborn feeds and move up as intake increases.
When to skip the vent (and when not to)
The vent system is removable. For a baby who feeds well without colic symptoms, you can use the bottle without the internal vent for fewer parts. However, if your baby is prone to gas, spit-up, or seems uncomfortable after feeds, keep the vent in place. The set's design lets you switch between vented and unvented use, but always follow the instruction leaflet for the specific configuration.
Step-by-step: assembling and using the wide-neck newborn set
- Wash all parts before first use: Disassemble the bottle completely—bottle, collar, nipple, and all vent pieces. Wash in warm soapy water, rinse thoroughly, and sterilize according to the instructions. Common mistake: skipping the vent parts, which trap milk residue. Check that every vent piece is clean and dry before assembly.
- Insert the vent system into the bottle: Place the internal vent tube into the bottle so it sits flat at the bottom. Then fit the vent reservoir onto the tube. Checkpoint: the vent should stand upright and not wobble. A wobbly vent means it's not seated—re-seat before adding milk.
- Fill with milk or formula: Pour prepared milk or formula into the bottle up to the desired level. Do not overfill past the maximum line. Common mistake: filling above the vent's top, which can cause leaks. Leave a small gap below the collar threads to allow for the vent.
- Attach the nipple and collar: Place the nipple over the vent top, then screw the collar on firmly. Checkpoint: tug gently on the nipple—it should not pull out. If it does, the collar is cross-threaded. Hand-tighten only; over-tightening can damage the collar.
- Test the flow and feed: Invert the bottle and check for a slow, steady drip. If nothing comes out, the vent may be blocked or the nipple tighten. Loosen the collar slightly. Feed your baby, keeping the vent end filled with milk. If feeding slows, check the vent is not clogged with milk residue.
- Disassemble and clean immediately after feeding: Take apart all components, including the vent, and wash promptly to prevent milk drying in the vent tube. Use a small brush for the tube. Common mistake: leaving milk in the vent overnight, which is hard to clean. Rinse the vent tube under running water before washing to flush out milk.
Product facts
- Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle Newborn Feeding Set: The anti-colic internal vent system is clinically proven to reduce colic and decrease spit-up, burping, and gas. This is the core reason to use the vent correctly—if assembled wrong, you lose the main benefit.

Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle Newborn Feeding Set
