Introducing a bottle to a breastfed baby: when, how and what to try

Newborn · Feeding · Updated July 2026 · All articles

Wanting to introduce a bottle is one of the most common goals for breastfeeding families. Maybe you are returning to work, you want your partner to share some of the feeds, or you simply need to know your baby can be fed by someone else when you are not there. Whatever the reason, bottle refusal is one of the most searched and most frustrating things new parents hit in the early months. This article gives you practical, specific guidance on timing, bottle choice, paced feeding, and what to try when your baby says no.

Why you might want to introduce a bottle

There are many reasons breastfeeding families choose to add a bottle alongside nursing:

• Returning to work. If you plan to go back to work, your baby will need to take feeds from someone else during that time. A bottle is how most families make that work.
• Giving your partner feeding time. Feeding is one of the main ways a partner bonds with a new baby. Offering a bottle of expressed milk lets someone else take a shift and gives you a rest.
• Needing to be apart from your baby. Medical appointments, a social occasion, or simply some time to yourself all become easier when your baby can accept a bottle.
• Building a backup supply. Some families like to have a freezer stash of expressed milk as a safety net for unexpected situations.
• Managing supply or latch issues. If you are expressing to build or protect supply, or your baby has had latch difficulties, feeding expressed milk by bottle can bridge the gap.

The timing question: not too early, not too late

Timing is where most families get tied up in knots. The concern with introducing a bottle very early, in the first two to four weeks, is that breastfeeding may not yet be well established. In the early weeks your milk supply is still calibrating, your baby is still learning to latch, and introducing a teat that delivers milk more easily could lead to breast refusal or confusion about how to feed. This risk is real, particularly if breastfeeding has had a rocky start.

NHS and UNICEF Baby Friendly Initiative guidance recommends waiting until breastfeeding is well established before introducing a bottle, and for most families that means around four to six weeks. That said, "well established" looks different for every family. Some introduce a bottle a little earlier for specific reasons and have no problems at all. The key question is whether direct breastfeeding is going smoothly before you add the bottle.

The risk on the other side is waiting too long. Many babies who have exclusively breastfed for two to three months or more simply refuse a bottle. They are very practised at the breast, they may not be interested in something that feels and responds differently, and they tend to have firm opinions about it. If you have a return-to-work deadline in mind, do not leave bottle introduction until the week before. Start practising at least a few weeks ahead of when you actually need it to work.

A note on nipple confusion

You may have been told that introducing a bottle will cause nipple confusion and undermine your breastfeeding relationship. The reality is more nuanced. Many babies switch between breast and bottle without any issue at all. The nipple confusion risk is higher for babies who are already having breastfeeding difficulties, particularly those with a tongue tie or an established latch problem, because their oral mechanics are already under more strain. For a baby who is breastfeeding well and feeding is going smoothly, adding one bottle a day is unlikely to cause problems.

The more practical concern is flow preference. Bottles can deliver milk with less effort than the breast, particularly if the teat has too fast a flow. If your baby discovers that the bottle is easier work, they may start to push back at the breast. A slow-flow teat and a paced feeding technique (covered below) are the main ways to manage this.

Choosing a bottle

There is no single best bottle for breastfed babies, despite what the packaging of many will suggest. A few features matter most:

• Slow-flow teat. This is the most important feature. A slow-flow or newborn teat means your baby has to actively suck to get milk, similar to what they do at the breast. Fast teats give milk too easily and increase the risk of your baby developing a preference for the bottle over the breast.
• Wide-neck teat. If your baby has a wide latch at the breast, a wide-neck teat may feel more familiar. Narrower teats can suit babies with a smaller mouth. There is no right answer here; it depends on your baby.
• Anti-colic venting. Some bottles have internal venting systems, like Dr Brown's Natural Flow, which some families find reduces wind and fussiness during feeds. This is a useful feature rather than an essential one.

Brands that come up most often for breastfed babies include Medela Calma, Tommee Tippee Closer to Nature, Dr Brown's Natural Flow and MAM. You may try two or three before finding one your baby accepts, and that is completely normal. Start with one bottle rather than buying a full set in case you need to switch.

What to put in the bottle

If you are breastfeeding, start with expressed breast milk. It is familiar in smell and taste, which makes it a gentler first introduction to the bottle. If your plan is to use formula, that is completely fine. The bottle introduction process is mostly about the teat, the position, and the person offering it rather than what is inside.

Who should give the bottle

This is one of the most practically useful things to know: in the early stages, do not be the one to offer the bottle if you are the breastfeeding parent. Your baby can smell you. When you are close, breastfeeding is the most obvious and appealing option to them, and they are likely to refuse the bottle and root for the breast instead.

Your partner, a grandparent, or another trusted caregiver will often have much more success. If possible, try being in another room or even out of the house entirely for the first few attempts. This removes the comparison between the familiar and the new. Once your baby takes the bottle confidently from someone else, you can start offering it yourself too.

When to offer the bottle

Timing within the day matters as much as who is offering the bottle. A few things that help:

• Slightly hungry, not screaming. Offer the bottle when your baby is calm and beginning to show hunger cues, not when they are so hungry they are distressed. A very hungry baby has no patience for something unfamiliar.
• Not immediately before a usual breastfeed. If your baby expects the breast at a particular time and you offer a bottle instead, the contrast is immediate and refusal is more likely.
• Drowsy can help. Some babies accept a bottle more easily when they are sleepy and slightly less opinionated about what is going on. A feed just as they are waking from a nap can be a good moment to try.
• After a settled breastfeed. A small top-up bottle offered after a breastfeed, when your baby is calm and comfortable and not competing the two options, can be a good first introduction.

How to offer the bottle: paced feeding

Paced feeding is the technique that makes the biggest practical difference when introducing a bottle to a breastfed baby. The goal is to slow the feed down so it more closely matches the pace and effort of breastfeeding.

1. Hold the bottle horizontally. Rather than tipping it up at a steep angle, keep it as close to horizontal as possible. This reduces the flow so your baby has to actively suck to get milk, rather than milk pouring into their mouth.
2. Let your baby lead. Touch the teat to your baby's lips and wait for them to open their mouth and draw it in, rather than pushing it in. The same approach that works for a good breastfeed works here.
3. Allow pauses. Every few minutes, tilt the bottle down slightly so the flow stops, just as the breast pauses between letdowns. Let your baby rest and decide whether they want more.
4. Do not rush the feed. A paced feed of 60 to 90 ml should take roughly ten minutes. If it is done in three minutes, the flow is probably too fast or the bottle is being held too steeply.

Paced feeding also helps prevent overfeeding and reduces the chance of your baby developing a preference for the bottle, because the effort involved is more comparable to the breast.

What to try when your baby refuses

Bottle refusal is very common among breastfed babies and is fixable in most cases. If your baby is refusing, work through these adjustments one at a time rather than changing everything at once:

• Try a different temperature. Body temperature (around 37°C) is the starting point, but some babies prefer milk slightly cooler or even cold from the fridge. Try warming it a little more, or try offering it at room temperature, and see which your baby prefers.
• Change the position. Do not hold your baby in the breastfeeding position when offering a bottle. Try sitting them facing away from you and looking outward, or in a semi-upright position. Some babies accept a bottle more readily when they are in motion, so walking, rocking or swaying while you offer it can help.
• Let your baby guide the teat in. Place the teat to your baby's lips and wait. Pushing the teat into a closed or resistant mouth tends to make refusal worse, not better.
• Try a drop of milk on the teat. A little expressed breast milk on the teat before you offer it can help your baby recognise the familiar taste and make them more willing to try.
• Try a different teat. If you have used the same bottle for several attempts with no progress, the shape may simply not suit your baby. Try a different brand or teat style before writing off the bottle altogether.
• Have a different person offer it. If you are the nursing parent and you have been doing the bottle attempts yourself, hand it over to your partner or another caregiver for the next few tries.
• One calm attempt per day. If your baby refuses, end the attempt gently and try again the next day. Making it a battle will build a negative association with the bottle. Keeping it light and pressure-free gives it the best chance of working over time.

If your baby keeps refusing

Some babies continue to refuse the bottle even after weeks of patient trying. If you are approaching six months of age and nothing is working, it helps to know that a bottle is not the only path forward. Many families skip the bottle entirely and move straight to a sippy cup or open cup at six months. From this age, babies can begin to learn to drink from a cup, and some take to it more readily than they ever took to a bottle.

If you need your baby to accept some form of alternative feeding before six months, because of a return to work or another time pressure, talk to your health visitor. Cup feeding is possible from birth in certain circumstances, and your health visitor can advise on what makes sense for your baby's age and needs.

The most important thing to hold on to is that persistent bottle refusal is not a failure on your part or your baby's. Some breastfed babies are simply very committed to the breast. That is a sign of a strong breastfeeding relationship, even if it does not feel like one right now.

Frequently asked questions

When should I introduce a bottle to a breastfed baby?

NHS and UNICEF recommend waiting until breastfeeding is well established, typically around four to six weeks. Introducing too early can interfere with breastfeeding while it is still getting going, and waiting too long can make it harder as babies become more attached to the breast. If you have a return-to-work date, start offering a bottle at least a few weeks before you need your baby to accept one reliably.

What bottle is best for a breastfed baby?

There is no single best bottle, but a slow-flow teat is the most important feature because it means your baby has to work for the milk, similar to breastfeeding. Wide-neck teats suit babies used to a wide latch. Medela Calma, Tommee Tippee Closer to Nature, Dr Brown's Natural Flow and MAM are all commonly tried, but every baby is different and you may need to test more than one.

Why does my breastfed baby refuse a bottle?

Bottle refusal is very common. Your baby may find the teat unfamiliar, the flow different from the breast, or they may simply prefer the closeness of nursing. Babies can also smell the nursing parent and refuse the bottle when offered by them. Most bottle refusal improves with adjustments to timing, position, temperature, who is giving the bottle, and the type of teat. It rarely comes down to one single fix.

Should the breastfeeding parent give the bottle?

Not initially, in most cases. Your baby can smell you, and being close to you makes breastfeeding the most obvious and appealing option. A partner, grandparent or another caregiver often has much more success, ideally while you are in another room or out of the house entirely. Once your baby accepts the bottle reliably from someone else, you can start to offer it yourself too.

What is paced feeding?

Paced feeding is a way of offering a bottle that slows the feed down to more closely match the pace and effort of breastfeeding. You hold the bottle horizontally rather than tipping it steeply, let your baby lead and draw the teat in themselves, and pause the feed every few minutes as you would between breastfeed letdowns. This reduces the risk of your baby preferring the faster-flowing bottle over the breast, and helps prevent overfeeding.

What if my baby keeps refusing the bottle?

Keep trying one calm attempt per day without forcing it. Try different temperatures, positions and teats, and have a different caregiver offer the bottle. If your baby still refuses by around six months, moving straight to a sippy cup or open cup is a valid route that many families take successfully. Talk to your health visitor if you are worried about your baby's feeding.

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• Combination feeding: breast and bottle together