Breast Milk Storage Chart: A Printable Quick-Reference Guide for Australian Mums
Bookmark or print this page. This quick-reference chart shows how long freshly expressed breast milk keeps at room temperature, in the fridge and in the freezer for healthy, full-term babies, based on Australian Breastfeeding Association (ABA) guidelines. Stick it on the fridge and you’ll never have to second-guess a bottle again.
Breast milk storage chart (at a glance)
| Milk type | Room temp (26°C or lower) | Fridge (4°C or lower) | Freezer |
|---|---|---|---|
| Freshly expressed | Up to 6–8 hours (refrigerate if you can) | Up to 72 hours (3 days), store at the back | 2 weeks in a fridge freezer compartment; 3–6 months in a separate freezer (−18°C) |
| Thawed (previously frozen) | Use straight away | Up to 24 hours | Do not re-freeze |
| Leftover from a feed | Use within the current feed, then discard — don’t save part-finished bottles | ||
These times are for healthy, full-term babies at home. If your baby is premature or unwell, or in hospital care, ask your midwife, lactation consultant or the ABA, as stricter guidance may apply.
Quick storage checklist
- ☐ Wash hands and use clean, sterilised containers or storage bags.
- ☐ Label every container with the date (and time) you expressed.
- ☐ Store milk at the back of the fridge or freezer, not in the door.
- ☐ Freeze in small portions (60–120ml) to avoid waste.
- ☐ Leave a little space at the top — milk expands as it freezes.
- ☐ Use the oldest milk first (first in, first out).
- ☐ Thaw in the fridge or under cool then warm running water — never in the microwave.
- ☐ Swirl (don’t shake) to mix the layers, and test the temperature before feeding.
How to thaw and warm safely
Thaw frozen milk overnight in the fridge, or hold the container under cool then gradually warmer running water. To warm, stand the bottle in a jug of warm water or use a bottle warmer — never the microwave, which heats unevenly and creates hot spots. Swirl gently to remix the creamy layer, and test a few drops on your wrist. For step-by-step help, read how to defrost and warm frozen breast milk safely.
Storing milk when you’re out or back at work
An insulated cooler bag with ice packs keeps expressed milk cold for the trip home or the commute — treat it like fridge storage once it’s cool. Planning around pumping? See our guide to how long breast milk lasts after pumping, and the full breast milk storage guidelines for Australia for every detail.
Make expressing and storing easier
Cherub Baby’s breast milk storage bags and pouches are pre-sterilised or reusable, easy to label and lie flat to save freezer space. Feeding on the go? Our portable bottle warmers gently warm expressed milk anywhere, without a microwave.
Shop breast milk storage now →
Frequently asked questions
How long does freshly expressed breast milk last in the fridge?
Up to 72 hours (3 days) at 4°C or lower for a healthy, full-term baby. Store it at the back of the fridge, not in the door, where the temperature is most stable.
How long can breast milk stay at room temperature?
Up to 6–8 hours at 26°C or cooler, but it’s best to refrigerate it as soon as you can, especially in warm weather.
How long does frozen breast milk last?
About 2 weeks in a fridge freezer compartment, or 3–6 months in a separate deep freezer at −18°C. Label with the date and use the oldest first.
Can I re-freeze thawed breast milk?
No. Once thawed, use it within 24 hours if kept in the fridge, and never re-freeze it.
Can I add freshly expressed milk to already chilled milk?
Yes, but cool the fresh milk in the fridge first, then combine it with previously chilled milk from the same day. Don’t add warm milk to frozen.
Why shouldn’t I warm breast milk in the microwave?
Microwaves heat unevenly and create hot spots that can scald your baby and may damage some of the beneficial properties of the milk. Use warm water or a bottle warmer instead.
