Glass Breast Milk Storage Bottles (Set of 2)

One bottle. Three jobs. No drop wasted.

Pump into it. Store in it. Feed from it — no transferring, no plastic bags, no extra containers. One glass bottle replaces three.

Made from the highest-grade borosilicate glass with LFGB-certified silicone — completely plastic-free from pump to baby. Your liquid gold deserves nothing less.

The Three Jobs — Done.

• 🍼 Pump — attaches directly to most leading pump brands (Spectra, Baby Buddha, Momcozy, Medela, and more- See Compatibility for full list). No adapters needed for many leading brands.
• ❄️ Store — freezer-safe, bottle warmer-safe, and fits perfectly inside the MilKeeper® cooler to keep milk cold for up to 20 hours on the go.
• 👶 Feed — attach a nipple and feed directly from the same bottle. Zero plastic ever touches your milk.

Why Mamas Love Them

• Compatible with leading breast pumps and nipples - no need for adapters
• 100% plastic-free — BPA-free, lead-free, phthalate-free, cadmium-free, leach-free. No microplastics. Ever.
• Less to clean — one bottle instead of three means fewer parts, fewer steps, fewer headaches
• Borosilicate glass — the gold standard for breast milk storage. Freeze it, boil it, sanitize it — it handles everything
• LFGB-certified silicone sleeve and lid — Europe’s strictest food-contact safety standard, exceeding FDA requirements. Protects the glass and prevents slippage
• See-through window — monitor milk volume at a glance
• Leak-proof lid — easier to use than regular lids, polished for mold-free build-up
• Fits the MilKeeper® — designed to work together for the complete plastic-free system
• Repurpose beyond milk — use for pureed foods, snacks, jams, and dressings as baby grows
• HSA/FSA eligible

5-6 oz | 150 ml | Available in Standard and Wide Neck

Backed by our Glass Body Replacement Program and Lifetime Guarantee — purchase with total peace of mind.

Mila's Keeper Breast Milk Storage Bottles are made of 100% Borosilicate Glass which is a premium-grade glass used in medical and laboratory settings.  Unlike other glass bottles like mason jars, made of inexpensive soda-lime glass, our bottles are also thermal shock resistant which means that it can be placed safely in the freezer and bottle warmers.

Our glass storage bottles include sleeves and a lid made of 100% LFGB Platinum-Grade silicone. Silicone is an organic based polymer, which is non-toxic and unlike plastic it is very durable, easy to clean and odorless. It is soft, silky and will not stain when washed after each use.

Mila's Keeper prides itself in using the highest quality materials and full transparency. All components of our products have been tested and exceed all US FDA and CPSC tests for lead, cadmium, Bisphenol A, and phthalates all resulting in "ND" - or non-detected for the following tests and can be found below or here.

Mila's Keeper Glass Breast Milk Storage Bottles come in two (2) sizes, standard and wide neck*, to accommodate different size pumps and nipples.  Make sure you know which neck size is the right storage bottle for you. 

* Pigeon, Lansinoh and most other nipples on this list, will work with our wide neck bottles if used with an Avent collar or similar generic collar.

The wide mouth of this size also best accommodates milk poured from wearable, hands-free breast pumps such as Freemie, MomCozy, Elvie, and Babyation.

Volume: 5-6 ounces | 150 ml

Weight: Standard: 6.2 oz; Wide: 6.8 oz

The MilKeeper-  Insulated Breast Milk Cooler Dimensions:  The MilKeeper can fit one ice pack and one 5 ounce/150 ml glass storage bottle by Mila's Keeper. The cooler may fit breast milk storage bottles such as Medela and Spectra.  Please check measurements before purchase to ensure the bottle fits the cooler.

The MilKeeper can alternatively fit 2 breast milk bags such as Lansinoh with 6 ounces each.

Important Note:  With the cold pack inserted, the MilKeeper can fit a bottle of maximum diameter of 2.5 inch (63mm) x 4 inch height (105 mm).

Easy Use Instructions:

1. 1. Remove ice pack from freezer after minimum 12 hours.
   2. Handling with care, always check the ice pack(s) for any leaks or cracks before use.
   3. If the ice pack is intact, twist the frozen ice pack counter-clockwise into inner threads of TempKeeper® lid to secure into place.
   4. Twist the TempKeeper® clockwise onto the base of the cooler to engage the leak-proof seal.
   5. Place one Mila's Keeper Glass Storage Bottle or other bottle and bags, into the cooler to stay cold for 20 hours. (Alternatively the ice pack may be placed at the bottom of the cooler, with the standard size storage bottle or bags on top.)
   6. Important note: Following the CDC/AAP recommendations, we do not advise adding warm milk to already cold milk. If you choose to do so, however, we recommend that you switch out to a new frozen ice pack at the time you add the new warm milk to the cold milk to ensure safety of your milk.  So consider getting extra ice packs!   
   7. See our Quick Guide on the Four Ways to Store Milk in the MilKeeper:

Care Instructions:

1. Wash and rinse the product thoroughly with soap before first use and after each use.
2. Bottle are safe in sterilizers.  Hand wash for best results to preserve the design. Dishwasher is not recommended due to the preservation of the gold design.
3. Do not use abrasive cleansers or scrubbers since they may scratch the finish.
4. Never place in freezer or microwave.

Easy Instructions as a Milk Warmer:   Fill your Mila's Keeper Breast Milk Cooler, the MilKeeper®, a third of the way with hot tap water.  Place your bottle safely inside the insulated flask, seal with the leakproof lid, and wait 10-15 minutes until your milk has defrosted and is cozy warm.

Instructions to Transport Frozen Milk:  Remove ice pack and frozen milk from bags or from our Mila's Keeper Glass Storage Bottles from the freezer. Place bags or milk into the MilKeeper with the ice pack, and your milk stays frozen for 36 hours! See video here. 

Note: If you plan on storing pre-refrigerated milk in the cooler, do not use with ice pack as this will cause the milk to partially freeze to the ice pack and lid.  Instead, store milk in a separate container (such as bags or bottles).  

How to Clean Mila's Keeper Products: