From Your Freezer to Freedom — Here's Every Step

Every drop of your milk is handled individually, tracked at every step, and returned to you exactly as it left, just without the water, and without the limits.

You've worked hard for every ounce in your stash. We built our entire process around one principle: your milk deserves to be treated like the irreplaceable thing it is.

Here's exactly what happens from the moment you order to the moment your pouches arrive back at your door.

Navy blue triangular cold-temperature icon featuring a snowflake symbol

1: Freeze

We freeze your milk at below -40°F to prepare it for the vacuum chamber.

Navy blue tornado or swirling wind icon representing airflow or vacuum

2: Vacuum

A deep vacuum is created inside the freeze-drying chamber, lowering the pressure around your frozen milk.

Navy blue flame icon representing heat or temperature

3: Sublimation (Dry)

A small amount of heat is introduced. Rather than melting, the ice converts directly to water vapor skipping the thaw step entirely. This is called sublimation, and it's why freeze-drying preserves nutritional quality better than standard dehydration or heat drying.

Navy blue breast milk storage pouch icon featuring a white milk drop

4: Package

Your freeze-dried milk is vacuum-sealed into your pouches, protecting it from moisture, oxygen, UV light, and contamination.

Frozen breast milk storage bags grouped inside a clear protective bag while being weighed on a digital scale

How We Transform Your Stash

From the moment your milk arrives until the day it returns home as shelf-stable nutrition, every step is designed to protect what you've worked so hard to create.

Your breast milk is carefully inspected as soon as it arrives to ensure it arrived safely. Next, our team individually labels, tracks, and processes your liquid gold separately from every other order. We record its temperature, document your order, and store your milk in our 24/7 digitally monitored deep freezers until it's ready for processing.

Open commercial freeze dryer showing multiple stainless-steel trays inside the processing chamber


To preserve its supreme nutritional value and antibodies, your frozen breast milk is placed into one of our specialized freeze dryers where the water is gently removed through a process called sublimation, removing only the water while maintaining the qualities that make your breast milk so valuable. Every production tray undergoes water activity testing to verify it has reached the proper level of dryness for safe, long-term storage. This important quality check helps ensure your freeze-dried breast milk remains shelf stable for up to three years.

Once your milk has been transformed into shelf-stable powder, it's packaged in your preferred Sip Style. Choose convenient single-use pouches, larger family-size pouches, or a combination of both, whatever fits your feeding routine best. Every pouch includes easy-to-follow mixing instructions so you can reconstitute your milk whenever your family needs it. Properly stored in a cool, dry place, your freeze-dried breast milk can maintain its nutritional value and antibodies for up to three years. Whether you're preparing bottles at home, traveling, sending milk to daycare, or incorporating it into your child's meals as they grow, your milk is ready whenever life calls for it.

Your Milk. Protected.

Milk by Mom freeze-dried breast milk pouch being weighed on a digital scale in a stainless-steel processing area

Your milk is uniquely yours, and we treat it that way.

We process one mama's milk at a time and clean and sanitize our equipment between every order. Your breast milk is individually labeled, tracked, and processed and remains properly identified and accounted for every step of the way. From arrival through packaging, you'll have complete visibility into its journey, with the confidence of knowing your milk never shares a batch with anyone else's.

Milk by Mom is an FDA, CDC, and GMP compliant facility, following strict ISO 5 Cleanroom Standards for handling and processing that are designed to protect the quality and integrity of your breast milk — so you can trust that every drop is cared for with the same attention we'd want for our own families.

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