The Welpr Rating is determined by a scoring formula. The formula takes into account the products safety, user satisfaction, and eco-ethical standing. Click here to learn more.

What we look for:

  • Food-grade materials like silicone, stainless steel, or safer plastic options
  • Always free from BPA, phthalates, and lead
  • Third-party certifications whenever available
  • Brands that are transparent about materials, safety, and sourcing

View our full standards here.

Our Methodology and Ratings

Find Non-Toxic Breast Milk Storage

Nuliie - Reusable Silicone Breastmilk Storage Bags (8 oz, 7 Piece)

Nuliie - Reusable Silicone Breastmilk Storage Bags (8 oz, 7 Piece)
Welpr Rating
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Welpr rating icon
4.85
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.
This product is dishwasher safe.

Materials

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Food-Grade Silicone

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$24.99
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Product Details

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  • Double seal design ensures leak-proof storage for added convenience and hygiene.
  • Wide opening allows for easy filling and cleaning, making it versatile for storing baby food and snacks.
  • Food-grade silicone material is BPA-free and reusable, promoting health and environmental sustainability.
  • Portable and compatible with various heating methods, offering flexibility in feeding and storing.
  • Dishwasher and freezer safe, simplifying cleaning and long-term storage.

Pros & Cons

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Pros

  • Eco-friendly and reusable, perfect for those looking to avoid single-use plastics.
  • Easy to clean with a wide opening, and both dishwasher and hand wash safe.
  • Durable and leak-proof, offering peace of mind for storage and travel.
  • Self-standing design simplifies filling and pouring.
  • Multi-purpose use; suitable for milk, baby food, and more.

Cons

  • Some users find labeling difficult as stickers don't adhere well to silicone.
  • A few users noticed a slight smell after washing, which might concern those with sensitive noses.
  • Thick material means milk can take longer to warm when heated.

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Momcozy - Silicone Breastmilk Storage Bags (8.5 oz, 5 Piece)

Momcozy - Silicone Breastmilk Storage Bags (8.5 oz, 5 Piece)
Welpr Rating
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Welpr rating icon
4.85
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.
This product is dishwasher safe.

Materials

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Food-Grade Silicone

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$41.92
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Product Details

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  • Made from food-grade silicone, ensuring a non-toxic and BPA-free option for safe milk storage.
  • Reusable design reduces waste and saves money over time compared to disposable storage bags.
  • Strong seal with a knob cap prevents leaks, ideal for storing milk in the refrigerator or freezer.
  • Versatile storage solution suitable for liquids and mushy foods, as well as serving as ice packs or hand warmers.
  • Easy to clean by boiling and can be used with bottle warmers for convenient milk warming.

Pros & Cons

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Pros

  • Leak-proof, durable silicone perfect for travel or work.
  • Eco-friendly alternative to disposable milk bags.
  • Reusable and easy to clean without worry of residue.
  • Compact design; fits easily into bags while traveling or commuting.
  • Flexible and versatile, suitable for storing milk, baby food, and snacks.

Cons

  • Some users find the measurements on the bag inaccurate, requiring alternative measuring methods.
  • Small parts in the lid could be misplaced during washing if not careful.

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Ceres Chill - OG Breastmilk Chiller

Ceres Chill - OG Breastmilk Chiller
Welpr Rating
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Welpr rating icon
4.85
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product does not contain Bisphenol S (BPS), a common BPA replacement used in plastics with similar health risks.
This product is free from lead, a toxic heavy metal linked to brain development issues, reproductive harm, and long-term organ damage.
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.
This product is dishwasher safe.

Materials

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Stainless Steel

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$68.98
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Product Details

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  • Keeps milk at safe temperatures for up to 20 hours, ensuring maximum freshness.
  • Compatible with most narrow mouth pumps and wearable pumps for easy milk transfer.
  • Use the lid as a bottle to feed the baby, adding convenience for busy parents.
  • Hand wash only, simplifying cleaning and maintenance.
  • Natural cooling method with dual-chamber design, avoiding chemicals or ice packs.

Pros & Cons

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Pros

  • Keeps milk cold for extended periods, ensuring freshness and safety.
  • Compact and discreet design, resembling a high-end water bottle.
  • Eco-friendly and reusable, reducing the need for single-use plastics.
  • Leakproof and sturdy, perfect for travel and everyday use.
  • Easy to use and versatile, compatible with most standard breast pumps.

Cons

  • The lid can be tight, especially if overtightened.
  • Some users may find it a bit bulky for certain storage spaces.

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Lansinoh - Breastmilk Storage Bags (6 oz, 100 Count)

Lansinoh - Breastmilk Storage Bags (6 oz, 100 Count)
Welpr Rating
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Welpr rating icon
4.85
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product does not contain Bisphenol S (BPS), a common BPA replacement used in plastics with similar health risks.
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.

Materials

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Low Density Polyethylene (LDPE)

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$13.98
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Product Details

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  • Designed to expand with your milk as it freezes for stronger, more reliable storage.
  • Presterilized and made without BPA or BPS for safe breastmilk storage.
  • Reinforced double sealed seams and a double zipper for ultimate protection.
  • Pump directly into the bags using most major breast pump brands with an adapter.
  • Lay flat to freeze and maximize storage space or stand in the fridge for easy access.

Pros & Cons

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Pros

  • BPA/BPS-free and pre-sterilized, ensuring safety for stored milk.
  • Flat freezing design saves space and allows for even, rapid thawing.
  • Double zipper seal provides leak resistance and secure closure.
  • Durable and sturdy construction prevents splitting during freezing.
  • Large labeling area for easy tracking of dates and volumes.

Cons

  • Some users find measuring lines inaccurate, reading slightly more than the actual amount.
  • A few users experienced occasional leaks, particularly at the corners of the bags.

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Medela - Pump and Save Breast Milk Bags (5 oz, 50 Count)

Medela - Pump and Save Breast Milk Bags (5 oz, 50 Count)
Welpr Rating
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Welpr rating icon
4.85
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product is free from phthalates, a type of plasticizer linked to hormone disruption and reduced fertility.
This product is free from lead, a toxic heavy metal linked to brain development issues, reproductive harm, and long-term organ damage.
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.

Materials

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BPA-Free Plastic

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$11.99
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Product Details

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  • Engineered to minimize spills and leaks for stress-free storage.
  • Protective oxygen barrier preserves essential nutrients in breast milk.
  • Easy-connect adaptor allows direct pumping into bags.
  • Convenient stand-up bottom and easy-to-close zipper top save space.
  • Made without BPA for peace of mind and safety.

Pros & Cons

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Pros

  • Durable and reliable for building a breastmilk stash.
  • Compatible with Medela pumps, making them convenient to use.
  • Great for freezer storage with no leaks reported when stored correctly.
  • Allows for hands-free pumping, saving time and effort.
  • Can stand upright for easy and stable storage.

Cons

  • Some users mention a compatibility issue with certain Medela pump models.
  • A few users find the single zipper closure less secure, especially for transporting or thawing.

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Momcozy - Breastmilk Storing Bags (6 oz, 120 Count)

Momcozy - Breastmilk Storing Bags (6 oz, 120 Count)
Welpr Rating
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Welpr rating icon
4.85
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product does not contain Bisphenol S (BPS), a common BPA replacement used in plastics with similar health risks.
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.

Materials

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Polyethylene (PE) + Polyethylene Terephthalate (PET)

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$18.17
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Product Details

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  • Temperature-sensing feature changes color to indicate milk temperature, helping you monitor feeding readiness.
  • Double strong sealing with double zipper ensures breast milk is protected and can be frozen without leaks.
  • Zero contamination design with separate milk import and export seals to maintain hygiene.
  • Space-saving bags can be frozen flat or upright for quick thawing or freezing.
  • Presterilized and BPA-free material ensures safe and non-toxic storage for your breast milk.

Pros & Cons

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Pros

  • Thick and sturdy design that prevents leaks effectively.
  • Temperature sensor adds a helpful feature for warming milk.
  • Easy to use and pour, especially with versatile opening options.
  • Good for storage in both fridge and freezer, maintaining quality.
  • Convenient for travel, with secure seals to prevent spills.

Cons

  • Temperature sensor may not be accurate for everyone, potentially confusing warmer settings.
  • Some users find the bags don't stand well when filled.

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Zomee - Disposable Breast Milk Storage Bags (8 oz, 90 Count)

Zomee - Disposable Breast Milk Storage Bags (8 oz, 90 Count)
Welpr Rating
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Welpr rating icon
4.75
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.

Materials

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‎BPA-Free Plastic

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$8.99
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Product Details

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  • Completely free from harmful chemicals and always BPA-free.
  • Made from strong, durable food-grade plastic with a double zipper seal.
  • Designed for easy storage and transportation of breast milk.
  • Compact storage suitable for fridge or freezer.
  • Helps to maintain maximum freshness and hygiene for your baby’s milk.

Pros & Cons

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Pros

  • Thick, durable bags that effectively prevent leaks and spills.
  • Double zipper seal ensures secure storage without stress.
  • Self-standing design makes them convenient to fill and store.
  • Generous 8 oz capacity accommodates ample breast milk storage.
  • Easy-to-use zipper closure compared to other brands.

Cons

  • Some users noted bags may not freeze completely flat, impacting storage space.
  • A few users found the green color made it harder to see air bubbles for removal.

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Nuliie - Breastmilk Storage Bags (8 oz, 120 Count)

Nuliie - Breastmilk Storage Bags (8 oz, 120 Count)
Welpr Rating
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Welpr rating icon
4.75
/5
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Certifications & Highlights

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<p>This product is <a href="https://www.welpr.com/certifications#welpr-approved" target="_blank">Welpr Approved</a>, meaning it has been vetted against our <a href="https://www.welpr.com/how-we-vet-products/baby" target="_blank">baby standards</a> and is free from all ingredients on our no list.</p>
This product does not contain Bisphenol A (BPA), a plastic chemical linked to hormone disruption. BPA-free is a good start, but alternatives like BPS and BPF can be just as harmful, so we call those out too.

Materials

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Food-Grade Polyethylene (PE) + Polyethylene Terephthalate (PET)

User Satisfaction

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We only include products on Welpr that are the best of the best. An EXCELLENT user satisfaction score indicates the product is in the top third of the best products.
Est. Price
$9.99
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Product Details

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  • Innovative side spout design allows direct pouring, reducing the risk of secondary pollution.
  • Robust double-zipper pre-seal ensures ultimate freshness and leak-proof confidence.
  • BPA-free materials safeguard your baby's health with dust-free and hygienic storage.
  • Versatile freezing and thawing options for optimal milk preservation and convenience.
  • Writable labels make it easy to organize and provide timely milk for your baby.

Pros & Cons

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Pros

  • Thick, durable material ensures no leaks or spills.
  • Pre-sterilized and BPA-free for peace of mind.
  • Double zip seal keeps milk fresh and secure.
  • Freezes flat to save space in the freezer.
  • Convenient spout design for easy pouring.

Cons

  • Some users found the perforated spout difficult to open and use.
  • Measurement markings may not be entirely accurate for precise tracking.

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Our Product Rating System

Our Product Rating System

First, Camille (co-creator of Welpr) hand picks cleaner product options from a variety of sources.

Next, we collect information about each product's safety, consumer satisfaction, and eco-ethical standing.

Finally, we run all this information through an algorithm that calculates the Welpr Rating.

Welpr Rating:

5.0/5

The Welpr Rating takes into account 3 things:

  1. Product Safety
  2. Consumer Satisfaction
  3. Ethics & Environment
Product safety

Part 1: Product safety

We evaluate safety information from 3rd party organizations (e.g. EWG, Made Safe, etc.). Instead of relying solely on any one of these companies for safety information, we assess all of them.

Consumer satisfaction

Part 2: Consumer satisfaction

We scour the web for consumer ratings and reviews to verify products are not only cleaner options, but also effective. Products can either be Above Average, Average, or Below average for their respective category (e.g. cleaning products).

Ethics & Environment

Part 3: Ethics & Environment

When you buy a product, you’re supporting that company with your dollars. We believe it’s important to support ethical companies, so we pool together certifications that verify a company's ethics and environmental impact.

Chemical Name

Why it’s harmful

No items found.
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Authors

Camille May, Product Curator

Hey, I’m Camille—co-creator of Welpr and your go-to guide for all things clean living. After selling my last company in the health food space, I went non-toxic to heal an autoimmune condition. It did wonders for my health, but navigating which products to buy wasn’t easy. We built Welpr to make that journey feel a bit easier.  When I’m not working on Welpr, you’ll usually find me in the sauna, sipping a raw milk latte while doing a puzzle, or walking with my pit bull Romeo in my hometown of Austin, TX.

Olushola M. Awoyemi, Medical Reviewer

Olushola M. Awoyemi (aka Shola) is a board-certified toxicologist and a research scientist with a PhD in Environmental Toxicology. Shola's long-term ambition is to be recognized as a world-renowned expert in toxicology, risk assessment, and management, with experience spanning across institutions like the US EPA, US FDA, NIEHS, USDA, UNEP, WHO, and possibly within Fortune 100 companies in the Chemical, Healthcare, Pharmaceutical, Consumer goods, or IT sectors.

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