When to introduce a bottle to a breastfed baby, how to do it without losing the latch, and when to move to a cup, with Singapore prices

The best time to introduce a bottle to a breastfed baby is after the first four weeks, once breastfeeding is going well. KKH's lactation team says to start with one bottle of expressed breast milk a day from about one month old, and to have your husband or another family member give it, so your baby doesn't search for the breast. Before that, HealthHub advises avoiding bottles and pacifiers, and giving any extra milk by cup, spoon or syringe. If you're going back to work, start building up bottle feeds about two weeks before. For the cup, HealthHub's advice is to wean your child off the milk bottle by age one and encourage drinking from a cup instead, so it pays to practise with a cup from around six months, when solids start.

The timing, at a glance

Why waiting four weeks helps

Sucking at the breast and drinking from a bottle need different techniques. HealthHub calls the mix-up "nipple confusion", and says some babies who get expressed milk from a bottle at the start may then refuse to latch directly. KKH's team puts it the same way: don't introduce the bottle until your baby has learnt to suck well at the breast, because the sucking actions are different.

There's a supply reason too. HealthHub's advice for the first four to eight weeks is at least eight breastfeeds in 24 hours, on demand, without formula top-ups, because that's when supply is built. Every bottle in that period is a feed your breasts don't get. If your doctor advises top-ups before four weeks, for weight gain or low blood sugar, follow that advice, and ask the ward nurses to show you cup or syringe feeding. Our guide to mixed feeding breast and formula explains how to protect your supply when top-ups are needed.

How to give the first bottle

1. Pick a calm moment when your baby is hungry but not frantic, often a mid-morning feed.
2. Ask your partner, a grandparent or your helper to give it, ideally while you're out of the room. KKH's reasoning is that your baby won't go looking for the breast.
3. Use expressed breast milk at first, so the only new thing is the bottle. To warm it, KKH says to stand the bottle in warm water for about 10 minutes; never boil or microwave it.
4. Start with a slow-flow newborn teat. Sellers size teats by age, and the smallest sizes are for newborns.
5. Hold your baby fairly upright, touch the teat to the lips and let your baby draw it in.
6. Pause halfway for a burp, and stop when your baby turns away. Discard what's left in the bottle after the feed, as KKH advises.
7. Keep expressing at the time of that missed feed, so your supply holds steady.

For how much milk to put in the bottle at each age, use our milk feeding calculator. If you're wondering about warming gadgets, our guide on whether you need a bottle warmer compares the options.

If your baby refuses the bottle

Bottle refusal is common in breastfed babies who are offered the bottle later, and it usually passes with patience. Things to try, one at a time over a few days:

• Leave the room, or the house. It's the same reason KKH gives for having someone else offer the bottle: your baby won't go looking for the breast.
• Try when your baby is drowsy, such as just after a nap, rather than wide awake and hungry.
• Change the teat. A different shape or a slower flow suits some babies better.
• Warm the teat under warm water, and make sure the milk is at body temperature.
• Use a cup or spoon instead. HealthHub suggests both as alternatives to the bottle, and some babies skip bottles altogether.
• Hold your baby facing outwards or walk around while feeding, if the usual cradle hold reminds them of the breast.

If your baby is refusing all milk, seems unwell or has fewer wet nappies, see a doctor rather than waiting it out.

Moving from bottle to cup

HealthHub's dental advice is to wean your child off the milk bottle by the age of one and encourage drinking from a cup instead, because long-term bottle use, especially at bedtime, is linked to baby bottle tooth decay. It also suggests switching formula to full-cream milk after one year, since formula is sweet, and brushing your child's teeth after the last milk before bed.

• Around 6 months, when your baby starts solids, offer a little water in an open or training cup at meals. Expect most of it on the bib at first.
• From 9 to 12 months, move daytime milk into the cup, one feed at a time.
• Drop the bedtime bottle last, and brush teeth after the final milk.
• Keep juice out of the cup. HealthHub says fruit juice lacks fibre and adds sugar, and recommends water as the everyday drink.

Spouted, straw and open cups all work. A straw or open cup is closer to how your child will drink later, but use whichever your child will actually drink from.

Bottles and cups you can buy in Singapore

Prices below are from each seller's own Singapore website, read on 11 October 2026. They change with promotions, so check before you buy. This is a sample of what's on sale, not a ranking: any bottle with a slow newborn teat will do for a first bottle.

Two or three bottles are enough to start. Buy more only once you know which teat your baby accepts. If you're planning your return to work, our guide to returning to work after maternity leave has a pumping routine and a handover checklist for the caregiver.

Frequently asked questions

When should I introduce a bottle to my breastfed baby?

After the first four weeks, once your baby feeds well at the breast. KKH suggests one bottle of expressed milk a day from about one month old, given by someone else.

Will giving a bottle ruin breastfeeding?

Not if you wait until breastfeeding is established and keep expressing for the feeds you miss. Bottles in the first few weeks are what HealthHub warns against, because they can lead to nipple confusion.

Is it too late to introduce a bottle at three or four months?

No, but older babies are more likely to refuse at first. Start a few weeks before you need it, let someone else offer it, and try a cup if the bottle doesn't work.

When should my baby start using a cup?

Practise from around six months, when solids start. HealthHub advises weaning off the milk bottle by age one and encouraging drinking from a cup instead.

When should my baby stop using a bottle?

By about one year. HealthHub links prolonged bottle use, especially at bedtime, to tooth decay, and suggests full-cream milk instead of formula after the first birthday.

Who should give the first bottle?

Someone other than the breastfeeding mother. KKH says your husband or a family member should offer it, so your baby doesn't search for the breast.