Cradle & Care

Buying guides · 5 min read

How to choose baby bottles: what matters, and why to start small

Bottles are the classic over-bought baby item: parents register for a dozen of one brand, then discover their baby won't take it. The single best piece of advice is to resist that urge and start small. Here's what actually differs between bottles, how many you truly need, and when a bottle problem isn't really about the bottle.

Last updated July 25, 2026

The one rule: start small, don't commit

Babies can be surprisingly particular about bottles, and there's no way to predict which they'll accept — the top-rated bottle and the cheap one are equally likely to be “the one,” or rejected. So buy a few single bottles from two or three brands and let your baby show you, before you commit to a full set. It's the same logic as our advice on diapers, and it saves the most money of anything on this page.

What actually varies

Once you've found a shape your baby likes, the meaningful differences are: nipple flow rate (start with the slowest for newborns and move up only as needed — a too-fast flow causes gulping and gas), anti-colic venting (systems that reduce swallowed air, which can help gassy babies), material (BPA-free plastic is light and cheap; glass and silicone avoid plastic and handle heat well but weigh more), and how many parts there are to clean (fewer is better at 3am).

How many you'll need

It depends on your feeding plan. If you're mostly bottle-feeding, most families land around 6-8 bottles so you're not washing constantly; if bottles are occasional (mostly nursing with a bottle here and there), 2-3 is plenty. Start on the lower end until you've confirmed the bottle works for your baby, then buy more of the winner.

When it's not the bottle

If your baby refuses bottles, gulps and chokes, or the transition from breast to bottle is fraught, that's usually a feeding or comfort issue rather than a product flaw — and buying yet another brand rarely fixes it. Paced bottle-feeding (upright, slow flow, frequent breaks) helps many babies, and a lactation consultant or your pediatrician is the right place to turn if it persists.

Common questions

Which baby bottle is best?
There's no single best bottle — babies are unpredictable about which they'll accept, and the highest-rated one is as likely to be rejected as a cheap one. That's why the smart move is to start with a few single bottles from two or three brands and let your baby decide before you buy a full set.
How many bottles do I need?
It depends on your feeding plan: mostly bottle-feeding usually calls for around 6-8 so you're not always washing, while occasional bottles (mostly nursing) need just 2-3. Start on the low end until you've confirmed which bottle your baby likes, then stock up on the winner.
What nipple flow should I start with?
Start with the slowest flow for a newborn and only move up if your baby seems to be working too hard for milk. A flow that's too fast causes gulping, choking, and extra swallowed air (and more gas), so slower is the safer default early on and paced feeding helps.
Do anti-colic bottles help with gas?
Anti-colic bottles use venting systems designed to reduce the air a baby swallows, which can help some gassy babies — though results vary and they're not a cure. Paced, upright feeding with a slow nipple flow helps too. If gassiness or fussiness is significant or comes with other symptoms, check with your pediatrician.

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