Bottle feeding 101

Bottle feeding, whether with expressed breast milk or formula, is half of Australian infant feeding — and it is rarely taught with the same rigour as breastfeeding. This article covers the technique, the pitfalls, and the specific approach (paced feeding) that supports responsive feeding and reduces overfeeding.

Positioning the baby

Bottle-feed the baby mostly upright — head higher than the stomach, supported against your body, with their head and trunk in alignment (not tilted or turned). Flat-on-back bottle feeding is not appropriate — it increases ear infection risk and makes paced feeding impossible.

Paced bottle feeding

Paced feeding is the recommended approach for all bottle-fed babies, and particularly for breast-and-bottle babies so the bottle does not override the breast. The technique slows the flow and allows the baby to control the pace, similar to breastfeeding.

1. 1Hold the bottle mostly horizontally, not tipped upright.
2. 2Gently touch the nipple to the baby's lips and wait for them to open wide and draw the nipple in themselves. Do not insert it.
3. 3Allow the baby to suck with the bottle slightly tipped — just enough milk in the nipple to prevent swallowing air, but not a continuous fast flow.
4. 4Every 20–30 seconds, tip the bottle back down so the nipple is full of air briefly — this is the 'pause'. The baby will swallow, breathe, and then start up again.
5. 5Watch for satiety cues — slowing, turning away, releasing the nipple. Stop there. Do not encourage finishing the bottle.

Nipple choice

Start with a slow-flow (Stage 1) nipple for any baby under 6 months, regardless of age. Many slow-flow nipples labelled '0m+' are still faster than ideal. If a feed finishes in under 10 minutes or the baby is gulping, drooling, or seeming panicked, the nipple is too fast — switch to a slower one.

Nipple shape matters less than flow. Breastfeeding-intended shapes (wide base, gradual slope) can support comfortable latching, but the flow rate is the more important variable.

How much, how often

Guidance from Australian paediatric feeding bodies:

• Newborns typically take 30–90 ml per feed, 8–12 times in 24 hours.
• By 1 month, 90–120 ml per feed, 6–8 times.
• By 3 months, 120–180 ml per feed, 5–6 times.
• By 6 months, 180–240 ml per feed, 4–5 times, as solids begin to take on some nutrition.

These are averages. A baby who takes less or more consistently and is growing well is doing their own correct thing. The 'finishing the bottle' instinct is almost always wrong — stop when the baby signals enough.

Safe formula preparation

If you are using formula:

• Wash hands and surfaces. Sterilise bottles and teats for babies under 12 months (boiled water for 5 minutes, or a dedicated steriliser).
• Use freshly boiled water cooled to at least 70°C. Australian guidance is that water temperature of at least 70°C at mixing kills any potential bacteria in powdered formula (which is not sterile).
• Measure formula precisely to manufacturer's instructions. Over-concentration (too much powder, too little water) is dangerous — sodium load, dehydration. Under-concentration under-nourishes.
• Cool the bottle to body temperature before feeding.
• Use prepared formula within 2 hours at room temperature, or 24 hours if refrigerated. Discard any unused formula after a feed — do not save a half-finished bottle.

The 'just one bottle' risk

For breastfeeding families, introducing a bottle can shift the feeding dynamic if not done carefully. A bottle-fed baby gets milk faster and with less effort. If the bottle becomes the preferred route, the breast supply can drop. Paced feeding, slow-flow nipples, and keeping breastfeeds strong help preserve the balance. Talk to a lactation consultant if this shift becomes a concern.

Signs the feeding is going well

• 6+ heavy wet nappies per day after the first week.
• Regular soft stools (frequency varies with age and type of feed).
• Weight gain on track with child health nurse checks.
• Baby who is alert, active, responsive when awake.
• Feeds that are calm, not frantic.

Bottle feeding done well is responsive, paced, and ends when the baby says. That is the same principle as breastfeeding, just with different equipment.