Key takeaways: There’s no single best bottle. Start with a slow-flow nipple and let your baby’s feeding behavior guide changes. Signs of a too-fast flow include gulping and sputtering; signs of a too-slow flow include frustration and very long feeds. Flow levels aren’t standardized between brands.
With so many bottles on the market, it’s easy to feel overwhelmed. The good news is that most babies do fine with many different bottles. Here’s what matters most.
Bottle Types
- Standard bottles: simple and inexpensive.
- Wide-neck bottles: easier to clean and fill; some have wider nipples that may feel more like the breast.
- Angled bottles: designed to keep the nipple full of milk; may help some babies take in less air.
- Vented or anti-colic bottles: have valves or vents to reduce air bubbles. They may help some babies with gas, though evidence is limited.
- Bottles with disposable liners: reduce air and are convenient but create more waste.
Materials
- Plastic: lightweight and durable. Choose BPA-free (all baby bottles sold in the U.S. are BPA-free). Avoid heating milk in plastic in the microwave.
- Glass: long-lasting and easy to clean, but heavier and breakable. Silicone sleeves help.
- Silicone: soft, lightweight, and unbreakable.
- Stainless steel: durable but you can’t see the milk.
Nipple Shapes
- Traditional: narrow nipple.
- Wide or breast-shaped: may encourage a wider latch.
- Orthodontic: flattened on one side.
There’s no strong evidence that any shape is best. The right nipple is the one your baby feeds well with.
Understanding Flow Rates
Nipples come in different flow levels, often labeled slow (or level 1), medium, fast, or by age. Important to know:
- Flow rates aren’t standardized between brands. A “slow-flow” nipple from one brand can flow much faster than another brand’s.
- Even nipples labeled the same level can vary. Studies have found wide variation in flow among nipples marketed for the same age.
- Age labels are just guidance. Many babies, especially breastfed babies, do well with slow-flow nipples long past the “recommended” age.
Signs the Flow Is Too Fast
- Gulping, choking, coughing, or sputtering.
- Milk leaking from the corners of the mouth.
- Wide eyes, stiff body, or pulling away.
- Finishing a bottle in under about 5 minutes.
- Frequent spit-up or gas.
Signs the Flow Is Too Slow
- Frustration, fussing, or falling asleep before taking enough.
- Sucking hard with little milk coming out.
- Feeds that consistently take more than 20 to 30 minutes.
- Nipple collapsing during feeds.
Tips for Success
- Start with a slow-flow nipple.
- Use paced bottle feeding.
- Don’t enlarge nipple holes yourself; it can cause choking.
- Replace nipples when they look worn, cracked, sticky, or swollen, often every 2 to 3 months.
- Try one bottle for a few days before switching; babies need time to adjust.
Cleaning
Wash bottles and nipples after each use in hot, soapy water or the dishwasher. Sanitize at least daily for babies under 3 months, premature babies, or babies with weakened immune systems.
Call your baby’s doctor if your baby: chokes or coughs at most feeds, refuses to feed, has trouble breathing during feeds, isn’t gaining weight, or has fewer wet diapers than usual.
The Bottom Line
The best bottle and nipple are the ones your baby feeds comfortably with. Start slow, watch your baby’s cues, and adjust as needed.
Want more support for your baby’s first year? My book, From First Breath to First Birthday, is available on Amazon.
Sources
- Pados BF, Park J, Thoyre SM, Estrem H, Nix WB. Milk flow rates from bottle nipples used for feeding infants who are hospitalized. Am J Speech Lang Pathol. 2015;24(4):671-679.
- Pados BF, Park J, Dodrill P. Know the flow: milk flow rates from bottle nipples used in the hospital and after discharge. Adv Neonatal Care. 2019;19(1):32-41.
- Kassing D. Bottle-feeding as a tool to reinforce breastfeeding. J Hum Lact. 2002;18(1):56-60.
- US Food and Drug Administration. Bisphenol A (BPA): use in food contact application. https://www.fda.gov
- Centers for Disease Control and Prevention. How to clean, sanitize, and store infant feeding items. https://www.cdc.gov/hygiene
This article is for general education and is not a substitute for individualized medical advice. Always talk with your baby’s health care provider or your own provider about your specific situation. If you think your baby or you may have a medical emergency, call 911.
