Everything you need to know about freeze-drying your milk
A gentle, science-backed way to preserve your liquid gold — with key nutrients, vitamins, antibodies & goodness intact.
So, what exactly is freeze drying?
Freeze drying is a gentle preservation process used in hospitals, science labs, and even space food. It removes the water from your breast milk — without using heat — leaving behind all the good stuff: the nutrients, antibodies, and immune factors that make your milk so special.
Your milk is frozen solid, then placed in a vacuum chamber. The ice turns directly into vapour and is drawn out, leaving behind a fine, shelf-stable powder that is 100% your milk — just without the water.
When you're ready to use it, simply add water back and it rehydrates within seconds. No nutrients lost. No heat. No nasties added.
How our service works
From your freezer to your door — easy, stress-free, and completely personalised to you.
Order Your Kit
Choose your service and we send you an insulated shipping kit straight to your door.
Pack Your Milk
Pack your frozen breast milk using our clear instructions and secure it in your kit.
Send It to Us
Ship your milk or book a local collection in Melbourne or Geelong.
We Freeze-Dry It
Your milk is individually processed in our facility — never mixed with anyone else's.
Returned to You
Your finished powder is sealed, labelled, and sent back — ready to store or use immediately.
How is it safe?
Your baby's safety is our highest priority. Everything we do — from our facility design to our handling protocols — has been built to give you complete peace of mind.
Seen enough? Let's preserve your milk.
Join 1,500+ Aussie mums who've already trusted us with their liquid gold.
Why freeze drying is the best way to preserve your milk
Unlike freezing or pasteurisation, freeze drying preserves your milk in its most complete form — here's why it matters.
Nutrients Stay Intact
Because no heat is used, the delicate proteins, live antibodies, enzymes, and immune factors in your milk are preserved exactly as nature made them. Studies show freeze drying retains significantly more bioactive components than any other preservation method.
98%+Nutrient retentionUp to 3 Years Shelf Life
Once freeze-dried, your milk powder can be stored at room temperature for up to 3 years — no freezer required. Ideal for travel, returning to work, building an emergency supply, or simply having flexibility in how and when you feed your baby.
3 YearsShelf stable storageLightweight & Convenient
Water makes up around 87% of breast milk's weight. Without it, your milk becomes a lightweight powder that's easy to store, travel with, and portion out precisely. One jar of powder can represent many feeds — easy to take anywhere.
~87%Weight reductionWhich kit do I need — and how much powder will I get?
Pop in your numbers for a rough estimate. Kit Calculator picks the right-sized shipping kit. Freeze Drying Calculator shows your expected powder yield.
Which kit do I need?
Based on fully filled bags. When in doubt, size up.
How much powder will you get back?
Rough estimate — bag weights and fat content vary. Actual yield may differ slightly.
Ready to preserve your liquid gold?
Join hundreds of Australian mamas who have already trusted The Milk Fairy with their most precious gift.
How do you currently warm your milk?
Tap your method to see what you're working around.
