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🍼 Keep every drop fresh, safe, and stylishly stacked!
Mason Bottle’s 12-pack of 4oz glass breastmilk storage jars combines toxin-free, lead-free glass with airtight silicone lids to preserve freshness and prevent freezer burn. Their stackable design optimizes fridge space, while embossed measurement markings enable precise portion control. Versatile and dishwasher safe, these jars easily convert into feeding bottles, making them an essential for modern, health-conscious parents.

| ASIN | B08Z7MHKHH |
| Best Sellers Rank | #16,408 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #109 in Canning Jars |
| Brand | Mason Bottle |
| Brand Name | Mason Bottle |
| Capacity | 4 fluid ounces |
| Closure Type | Screw |
| Color | Green |
| Container Shape | Round |
| Customer Reviews | 4.3 out of 5 stars 816 Reviews |
| Item Dimensions L x W x H | 8"L x 8"W x 8"H |
| Item Form | Jar |
| Item Volume | 48 fluid ounces |
| Item Weight | 4 ounces |
| Manufacturer | MASON BOTTLE |
| Material | Glass, Silicone |
| Material Feature | Lead free |
| Material Features | Lead free |
| Material Type | Glass, Silicone |
| Material Type Free | BPA, BPS, and Phthalate Free |
| Other Special Features of the Product | Space Saving Stackable Lid |
| Package Quantity | 1 |
| Product Care Instructions | Dishwasher Safe, Microwave Safe |
| Product Dimensions | 8"L x 8"W x 8"H |
| Recommended Uses For Product | Milk |
| Size | 4oz Jar Set (12 Pack) |
| UPC | 860005042128 |
| Unit Count | 4 Ounce |
B**T
High Quality and Easy to Wash!
I’ve been using these for a little over a year now and they have held up great! Now that little one is older, I use it to store snacks or overnight oats, etc. Easy to wash/ dishwasher and very durable. I love how it’s glass and how the lids don’t rust like the originals. Worth the money!
J**O
Jars with multi-use functionality, safety, and durability
The Mason Bottle Breast Milk Storage Jars are an excellent, sustainable choice praised for their high-quality, durable glass construction and airtight, leak-proof lids. They transition seamlessly from breast milk to baby food storage. Highly recommend these jars for their safety, convenience (freezer/dishwasher safe), and practical design, despite minor concerns about the lids being difficult to open and the jars taking up more storage space than bags.
E**L
👍🏼
I only use these for storage because I hated them as bottles. I had issues with the nipples/rings leaking. But! I love these for food storage, the lids are cute, and they're easy to clean.
M**E
great quality
i use these to store my extra breast milk in before bagging to freeze. work great! would definitely consider buying the nipples to go with it so i can just warm up and freeze!
J**B
Good storage jars overall, but room for improvements
Grateful to have an American-made, glass container to store pumped milk in for my baby. The lids and jars are easy to use together and do not leak when assembled properly. Great in the freezer or fridge. Also handy for storing baby food, or any other small thing you might need kept in the fridge. A few downsides… -The jar lids are advertised to work on all mason jars, but it can take a lot of finagling to get them actually sealed. -Before each use the inner ring needs to be pressed fully into the lid; if there is a gap it will leak (would be great if future iterations have silicone inside of the lid instead of 2 separate pieces!). -Due to the 2-piece design, sometimes the separated fat from the milk gets trapped on and under the ring; sometimes giving the jar a good shake before opening gets it all, sometimes not. When it doesn’t, I’ve taken to using one of my baby’s silicone spoons to get it off and back into the milk. Messy and an extra step when there’s usually a hungry, fussy baby waiting for it. -I have used these with the rings and nipples they make as a bottle for my baby. Those are another review (rings leak and nipples are too shallow/narrow for baby to get a good latch), but I found the jars to be frustrating to use this way because they are wide-neck and short, so it’s hard to get all of the milk to the nipple. Overall a good product, though! As baby is getting older and taking more than 3.5 oz/bottle I’m considering buying the set of 8 oz jars, so despite the frustrations they are still the best product I’ve found for the purpose.
A**R
Bottles are not good quality
I really wanted to like the mason bottle line, but there are flaws in the bottles, plastic rings and more severely the nipple. The nipple: These slow flow nipples drip just as quickly and the medium flow nipples. This causes choke issues while feeding your newborn because the flow of liquid is still too fast. The bottles/ lids: the bottle threads are not perfect so they leak with the plastic rings unless you apply full force pressure and tighten and check them every time. The bottles themselves, I’ve had two break by cracking at the bottom. They are not mason jar hefty and if you warm them up with sink warm water out of the fridge they are more likely to crack at the bottom.
S**A
Do the job
These jars are awesome! The assorted colored lids are a nice touch and make it easy to distinguish between them. The smaller jar's size is a bit awkward, and it can be tricky to gauge the milk level since they need to be filled beyond the last measurement line. Pouring could be smoother if the mouths were narrower, but we've adapted. The plastic lids require a tight screw, but the containers themselves are durable – they even survived a fall from my fridge! Overall, they're incredibly handy.
A**R
Small mason bottle storage
As a grandmother I have these for my DIL when they visit from out of state. Perfect for breast milk storage but also for food storage as baby grows. They are the right size for small portions for toddler whether they are frozen or refrigerated. No matter what you have in them they won’t leak in your cold storage bag or diaper bag.
J**E
Buen producto
Muy bien, me gustaron mucho para almacenar leche materna. No son delgados y no se derraman; cumplen con lo especificado.
I**O
Excelente caldidad.
Se sienten de muy buena calidad el vidrio es grueso, la tapadera hermetica me parece bien precio por los 12 botecitos. Yo los quiero para guardar mi leche materna, me llegaron en perfecto estado, el unico pero que pondría es que duraron 1 semana en llegar.
C**Z
Buena compra
Llegaron en tiempo y forma vienen muy bien empacados y se ve muy buen producto
V**O
Lo mejor para almacenar leche materna
Los bottles son de muy buena calidad, las tapas traen su empaque para evitar derrames, los tamaños son muy buenos, pensé que los de 4oz serían muy chiquitos pero son ideales para meter las papillas cuando salimos de paseo, todos llegaron intactos y venían muy bien protegidos en la caja. Son un poco caros si sumamos gastos de envío y cargos por importación, pero vale la pena tenerlos y así no contaminar tanto con el uso de las bolsas
L**O
Los volvería a comprar
Me encantaron, los súper recomiendo!!!
Trustpilot
2 weeks ago
2 weeks ago