Infographic of infant formula types, how to prepare a bottle, how to read the tin and a guide to storage times

Before you choose a formula

This is general information, not medical advice. If you formula-feed, top up or combine formula with breastfeeding, your midwife, child health nurse or doctor can help you choose, and they are your first call if your baby seems unsettled on a formula. Never make formula at home.

TypeWhat it isUsually suitableWho decides
Standard cow's milk formula (stage 1, starter or newborn)The most common type, and the one most babies need.From birth, and safe to use up to 12 months.You can choose
Follow-on formula (stage 2)A formula made for older babies. It is not required.From 6 months, never before.You can choose
Toddler or junior milk (stage 3 and up)Marketed to children over 12 months.Healthy children generally don't need it. Food and full-cream cow's milk can do the job.Usually skip
Goat's milk-based formulaMade to the same nutritional standards as cow's milk formula.Same ages as standard formula. Not for cow's milk allergy.You can choose
Organic, “gold” or “premium” rangesVariations on cow's milk formula, usually at a higher price.Same ages as standard formula. A higher price or marketing claim alone doesn't show an advantage for a healthy baby.You can choose
Hungry baby, comfort, anti-reflux, lactose-freeAdjusted versions aimed at common worries such as wind, reflux and crying.Evidence is thin. Anti-reflux and lactose-free are for medical use.Ask first
Soy-based formulaA plant-based alternative.Not under 6 months, and only on a professional's advice.Ask first
Hydrolysed and amino acid formulaMilk proteins broken down, or replaced with amino acids.For diagnosed allergy or medical need. The type depends on the condition, and some products have specific supply arrangements.Medical supervision
Ready-to-feed liquidThe same kind of formula, already mixed.Handy for travel. It costs more and must be used faster once opened.You can choose

A summary, not a recommendation. All infant formula sold in Australia has to meet the Food Standards Code, and no brand is endorsed here.

Reading the tin

Three things on a tin are worth a proper look. None of them is the brand name.

The big number (1, 2, 3)

  • A stage label that tells you which age group the brand has in mind
  • Read the age wording next to it, such as “from birth” or “from 6 months”
  • It isn't a measure of strength or quality

The use-by date and batch number

  • Check the use-by date before you buy and before you open a tin
  • Recall notices list the exact product, use-by date and batch number, so keep the tin until it is empty
  • Match all three to the notice before you use or return a tin

The feeding guide

  • A rough table of scoops and volumes by age
  • It is only a guide, and it varies between brands
  • It can't allow for your baby's weight, so ask your child health nurse how much is right

What do the numbers on a formula tin mean?

Recalls are the reason to keep the tin: Food Standards Australia New Zealand (FSANZ) publishes current food recall alerts, and you can subscribe to its recall emails.

The big numeral on the front, usually 1, 2 or 3, is a stage label. It groups a brand's products by the age of the baby they are aimed at, and it sits next to wording such as “from birth” or “from 6 months”. The Sydney Children's Hospitals Network describes step one, starter, newborn or 0 to 6 month tins as safe to use from birth to 12 months, and step 2 or follow-on tins as being for babies over 6 months.

The Food Standards Code defines its categories by age and purpose rather than by number: infant formula from birth, follow-on formula from 6 to 12 months, and special medical purpose products for use under medical supervision. In practice the numeral is the brand's way of laying out its range. Food Standards Australia New Zealand (FSANZ) tightened how these products are told apart from toddler milks in September 2024, with a transition to September 2029, so labels may keep changing.

FSANZ's 2026 review of consumer research found that parents rely on the “suitable for ages” wording more than the number, and that some parents elsewhere read the numeral as a baby's age in months or years, or even a number of cups. So read the age wording. A tin marked 0 to 12 months is infant formula, whatever number it carries.

Do I need to move to stage 2 at six months?

Not necessarily. The National Health Service (NHS) says there is no evidence that switching to follow-on formula at 6 months does any good or harm, and babies can stay on first infant formula until they are one. Follow-on formula should never be given before 6 months. The Tasmanian Department of Health advises avoiding switching where you can, because instructions differ between products and mistakes become easier.

Stage 3, toddler and junior milks are a different matter. The Sydney Children's Hospitals Network says babies don't need infant formula after 12 months, and that toddlers should get most of their nutrition from food, and can keep breastfeeding or drink cow's milk. The NHS says children aged 1 to 5 do not need formula milks.

Do I need a special formula?

Probably not. Most babies do well on a standard cow's milk formula, and the label claims on the others are often stronger than the evidence. The NHS says there is no evidence that babies settle better or sleep longer on a “hungrier baby” formula, and none for comfort formula preventing colic. The Sydney Children's Hospitals Network says “gold” or “optimum” formulas are not proven better than standard ones, and that evidence for formulas based on a particular milk protein being easier to digest is limited.

Some types are medical. Anti-reflux, lactose-free and soy formulas, and hydrolysed or amino acid formulas, are for use under medical supervision. If you suspect cow's milk allergy, don't try to fix it by swapping tins. The Australasian Society of Clinical Immunology and Allergy (ASCIA) lists extensively hydrolysed and amino acid formulas as suitable for cow's milk allergy, and lists partially hydrolysed, goat's milk and standard formulas, including anti-regurgitation, lactose-free, organic and specific milk-protein types, as not suitable. It also recommends seeing a paediatric allergy dietitian. Never make formula at home, because the Tasmanian Department of Health lists homemade infant formula as potentially unsafe.

Common mistakes when making up a bottle

The full method, and where Australian and UK advice on water temperature differ, is in our newborn feeding gear guide, and amounts and bottle technique are in the formula feeding guide. Here are the mistakes worth knowing about.

  1. Adding extra powder. The NHS warns it can cause constipation or dehydration, and a 2021 paper in the Medical Journal of Australia links over-concentrated formula to hypernatraemic dehydration (too much salt in the blood) and excess weight gain.
  2. Adding extra water. Too dilute a feed may not give enough nourishment, and the same paper links it to nutrient deficiency and poor growth.
  3. Using the wrong scoop. Scoop sizes and powder concentrations vary between products. Always use the scoop supplied with that tin and follow its exact instructions, never estimate the amount of powder, and never use another brand's scoop. If you change brand, read the new tin's instructions from the start.
  4. Packing the powder down. Level each scoop with a clean knife and don't press the powder into it.
  5. Warming in a microwave. It heats unevenly and can burn your baby's mouth. Test a few drops on the inside of your wrist.
  6. Propping the bottle. Always stay with your baby during a feed, because propping a bottle can cause choking and ear infections.

Safe preparation in brief (Australian method)

  1. Wash your hands and use a clean preparation area.
  2. Boil fresh tap water, then let it cool to lukewarm. The Raising Children Network says this takes at least 30 minutes.
  3. Pour the water into a sterilised bottle first, then add the exact amount of powder the tin directs, using the scoop that came with it.
  4. Level the scoop without pressing the powder down, seal the bottle and shake.
  5. Test a few drops on your inner wrist. It should feel just warm.

Keep sterilising bottle-feeding equipment until your baby is 12 months old. UK advice uses hotter water and a different order, so the two methods aren't interchangeable. Our newborn feeding gear guide has the full method and the comparison.

Time limits at a glance

These are the Australian figures, from the Raising Children Network and the Sydney Children's Hospitals Network, which agree with each other. UK advice is stricter: the NHS says to make up one feed at a time and throw away what is left. When you are out, the Raising Children Network says the safest option is to carry cooled boiled water and powder separately and mix as needed, and ready-to-drink formula is another option. For car travel, see our guide to car seats, prams and safe sleep.

SituationWhat to do
An opened tinDiscard after one month.
Baby has started drinkingThrow away what is left within one hour.
Prepared but not yet fed, left at room temperatureDiscard after one hour.
Prepared in advanceRefrigerate below 5°C within one hour, at the back of the fridge, and use within 24 hours.
Warming a bottleStand it in a jug of warm water for no more than 10 minutes, swirl it and test it on your wrist.
Transporting prepared formulaMake it icy cold, keep it in a cool bag with ice packs and use it within 2 hours.

How much formula does a baby need?

It depends on your baby's age and weight, which is why the tin only gives a guide. Our formula feeding guide covers how much and how often, responsive bottle feeding, mixing breast and bottle, wind and poo, and moving from bottle to cup.

For bottles, sterilising and pumps, see newborn feeding gear, or the newborn essentials overview for the whole list.

Frequently Asked Questions

They are stage labels that group a brand's products by age. In general, stage 1 is infant formula from birth, stage 2 is follow-on formula for babies over 6 months, and stage 3 is a toddler milk for children over 12 months. The numbers are a brand's way of arranging its range, so read the age wording on the tin as well.
No. The National Health Service (NHS) says switching at 6 months has no shown benefit, and babies can stay on first infant formula until they are one. If you do change, follow the new tin's instructions, because scoop sizes and water amounts differ between brands.
Neither is proven better. Goat's milk formula is made to the same nutritional standards as cow's milk formula, and the evidence that formulas based on a particular milk protein are easier to digest is limited. Neither is suitable for a baby with cow's milk allergy, so ask a doctor if you suspect one.
No. Extra powder can cause constipation and dehydration, and the NHS advises against it. Too little powder may not give enough nourishment. Use the scoop that came with the tin, level it, and follow the tin's water-to-powder amounts.
Australian guidance says to throw away made-up formula left at room temperature after one hour, and to throw away what is left in a bottle your baby has drunk from within one hour. If you make a bottle ahead, refrigerate it below 5°C within one hour and use it within 24 hours.
After 12 months, babies no longer need infant formula. Toddlers get most of their nutrition from food, and can continue breastfeeding or drink full-cream cow's milk from a small cup. Toddler and junior milks aren't needed for healthy growth.

Sources & methodology

This guide draws on Australian health services and regulators alongside UK guidance, and says where they differ. Labels, rules and recommendations can change, so confirm with your own midwife, child health nurse or doctor and follow the instructions on your formula tin. We don't recommend specific brands.

This page provides general information and is not a substitute for personalized medical advice. Ask your doctor, midwife or child health nurse which formula and amounts are right for your baby.

TRACK EACH BOTTLE

Know what your baby is really taking.

If you formula-feed, BabyQuil lets you record each bottle, so you can look back over days and weeks and share the pattern with your child health nurse.

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