Silicone Breast Milk Storage Bottles

Soft, squeezable, and completely plastic-free — meet the world's first 100% 3-in-1 silicone breast milk bottle designed to pump, store, and feed. And yes — it's the breast milk bottle daycares love too, thanks to its easy labeling, unbreakable design, and simple cleaning.

Named Parents' Best Breastfeeding Accessory of 2026 — and it's easy to see why.

Crafted from 100% LFGB-certified silicone — Europe's strictest food-contact safety standard, which goes beyond US FDA requirements — these bottles undergo rigorous testing to ensure:

• No fillers — pure, high-quality silicone with no unnecessary additives
• Odor-free & durable — no lingering smells or degradation over time
• Chemical & microplastic-free — zero leaching of harmful substances into your milk

100% Plastic-Free for Pumping, Storage, and Feeding

Why moms (and daycares) love them:

• Daycare-friendly — label with a ballpoint pen or dry-erase marker for easy date tracking; unbreakable and dishwasher safe for busy caregivers
• Pump directly — compatible with most leading breast pump brands (see Compatibility)
• Store safely — freezer-friendly and easy to warm in a bottle warmer
• Feed your baby — attach a nipple for seamless infant feeding
• Easy to clean — dishwasher and UV sanitizer safe
• Semi-transparent — monitor milk levels at a glance
• Virtually unbreakable — boil, bake, or freeze; won't crack or degrade like plastic
• Fits the MilKeeper® — keeps breast milk cold for up to 20 hours on the go
• Reusable beyond milk — perfect for storing infant solids as baby grows
• HSA/FSA eligible

6 oz | 180 ml | Available in Standard and Wide Neck

Backed by our Lifetime Quality Guarantee — purchase with total peace of mind.

Mila's Keeper Silicone Breast Milk Storage Bottles are made of 100% LFGB Platinum-Grade silicone. This requires the strictest testing by a third party CPSC-approved lab, meeting EU standards, as medical-grade (different from food grade).

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. All components of our products have been tested and exceed all US FDA and CPSC tests for lead, cadmium, Bisphenol A, and phthalates. Please feel free to see our third party laboratory tests here.

Mila's Keeper Silicone 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. (Standard is currently on Pre-Order)

* Please always test nipples for leaks before use. Pigeon and Lansinoh nipples can fit into Avent collars or similar generic collars for use with our wide necks.

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

Volume: 6 ounces | 180 ml

Weight: Standard: 3.2 oz; Wide: 3.7 oz

Dimensions: Approximately 2.5 inch (63mm) x 4 inch height (105 mm).

Fits conveniently inside the MilKeeper!

Care & Use Instructions

Mila's Keeper Silicone Storage Bottles can be used to directly pump breast milk into using most leading brands of breast pumps, to store breast milk, and to feed.*

In order to secure the leak proof patent-pending silicone lid, there are two ways to use:

1. Push the lid firmly down to the bottom of the mouth of the bottle and twist to tighten, ensuring there is no gap between lid and bottle.

OR the easiest way

2. Simply peel back the lid to open, and push firmly down making sure there is no gap between lid and bottle.  See video here.

*Please note that when you first receive the bottle in its package, the lid might be vacuum sealed making it harder to peel open. Just know that once it is opened the first time, the vacuum will be released and it will be easier to use thereafter.

Use in Freezer & Bottle Warmer

Medical grade silicone is the purest form of silicone which contains no fillers, this means it handles even better under extreme conditions such as the freezer and even boiling water without fear of any leaching chemicals or microplastics which occurs when plastic is heated.

We would like to caution that when doing so, especially boiling, the silicone bottle will be extremely hot and you must use protective gloves to handle the hot glass.

Caring for your bottle:

Be sure to always clean your bottles before first use.

Dishwasher Safe

Yes silicone is fully safe in the dishwasher! We would also encourage a thorough rinse to remove residue beforehand especially in harder to reach places, such as the shoulders of the bottle.

Sanitize

Our bottles may be sanitized in multiple ways - by boiling water, the microwave or by UV sanitizer.  If you find that you have any stubborn smells, you can also safely place in the oven or an airfryer for 5 minutes even to eliminate all odors!