The MilKeeper® - Breast Milk Cooler

Named a TIME Best Invention, the MilKeeper® is the patented breast milk cooler that changed the game for pumping moms everywhere. No more messy ice, no more bulky cooler bags — just sleek, luxe, and effortlessly functional.

The MilKeeper® keeps up to 12 oz of breast milk cold for up to 20 hours without ice — from your morning pump all the way through your workday, errands, travel, and beyond. Designed by mamas, for mamas.

Why moms love it:

• Keeps milk cold up to 20 hours — no ice needed, ever
• Works 4 ways — store your 3-in-1 glass bottle inside, pour milk directly in, use with bags, or use as a bottle warmer for breast milk or formula
• Fits your MilKeeper® 3-in-1 Glass Bottle perfectly — the complete pump-store-feed system in one
• Cup holder & stroller compatible — fits seamlessly into your daily routine
• TSA-friendly — take it through airport security without a second thought
• HSA/FSA eligible
• Repurposes as a water bottle — your travel mate long after your breastfeeding journey ends
• Dishwasher safe (without detergents)
• Backed by our Lifetime Quality Guarantee

18/8 Double-Wall Insulated Stainless Steel | Copper-lined | Lead-Free Glass Vacuum Seal | TempKeeper® lid | Ergonomic handle

See all MilKeeper® Breast Milk Chillers and Storage Containers in Gift Sets.

Mila's Keeper Double-Walled Insulated Bottles are made from the highest grade 18/8 or 304 stainless steel. For increased thermal control, the steel is copper lined to reflect heat, ensuring the contents of your bottle stay cold as long as possible.

The lid is made of BPA-Free polypropylene which is food-grade and tested for FDA and CPSC approval.

The vacuum seal is made of a lead-free glass bead sealant.

Mila's Keeper prides itself in using the highest quality materials. All components of our products have been tested and pass all US FDA and CPSC tests for lead, cadmium, Bisphenol A, and phthalates. And as we know there have been lots of concern regarding lead in the seal gaskets, you can be sure that Mila's Keeper ensures that no lead is used, not even for hidden seals with results of ND - or Non-detected.

Dimensions: 8 3/4 inches height, 2 3/4 inches diameter

Weight:   MilKeeper + ice pack = 1.5 pounds or approximately 24 oz.

The MilKeeper -insulated breast milk coolers - fit one cold pack and one 5 ounce/150 ml glass storage bottle by Mila's Keeper. The cooler may fit other leading breast milk storage bottles such as those by Medela, Spectra and Motif.  Please check measurements before purchase to ensure the bottle fits the cooler.

If milk is poured directly into the the MilKeeper, it can hold 12 ounces of milk or other liquids with the ice pack.

The MilKeeper can hold two (2) bags of breast milk bags (such as those from Lansinoh or Kinde) of 6 oz each.

Important Note:  With the ice pack inserted, the MilKeeper can fit a bottle of maximum diameter of 2 1/4 inch x 4 inch height.  

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: