Storing Milk in Mason Jars - You Won't Spill a Drop of Milk or Waste a Minute of Your Time


In a nutshell, using mason jars to store breast milk means one less thing to buy, one less thing to spill, and one less thing to throw away. 
Eliminating all that waste feels pretty good.
Here are the Top 5 Reasons to Store Breast Milk in Mason Jars:
mason-bottle-jar-baby-breast-milk-storage-pumping-container-glass-silicone-nipple-sleeve-working-mom-daycare-insulated-bag
1. You'll Have Less to Wash
With Mason Bottle, your storage jar will become the bottle itself. This will simplify not just clean up, but your whole pumping and feeding routine.
2. You'll Save Money.
Breast milk storage bags can only be used once, but mason jars can be used over and over again for breast milk storage, and later for baby food a tons of other things.
mason jar breast milk storage containers
3. You'll Save Space
Mason jars are stackable, so you'll be able to maximize storage space. (Breast milk storage bags aren't supposed to stacked, as this can lead to leaking.)
mason-jar-baby-bottle-heat-resistant-warming-breast-milk-bowl-glass-jar-infant-silicone-nipple
4. You Won't Waste A Drop of Milk
It's easy to spill breast milk when transferring it from a storage container to a bottle. But if you just add a  Mason Bottle Nipple to the jar, your storage container BECOMES a bottle.
mason bottle silicone nipple mason jar glass baby bottle bpa free wide breast like shape
5. You Won't Have to Worry About Chemical Leaching from Plastic
You'll be using glass mason jars for both storage and feeding, so you won't need to worry about chemical leaching during heating. Bonus: You won't be throwing away single-use plastic milk storage bags, either.

  What You'll Need:

1. Regular-mouth mason jars in 4 oz. and/or 8oz. sizes

2. Mason Bottle DIY Kit(s), so you can turn your jars into baby bottles

(Tip of the Day: DIY Kits are $3.00 off with code "NoMoreWasteDIY")


mason-bottle-mason-jar-baby-formula-mixing-storage-milk-bpa-free-glass-feeding-silicone-nipple-anti-colic
It's also very important to note that mason jars aren't just for storing breast milk either!
Some families like to mix all their baby's formula for the day in the morning and have the bottles ready to go in the fridge. They can shake the formula up in the mason jar, and then all they have to do is remove the lid and replace it with the nipple.
Some moms also make homemade formula and using mason jars allows them to preserve all that hard work in perfect serving sizes.
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3 comments


  • Jules

    Are there any concerns with freezing? Will the glass shatter or if you keep the volume low enough, it just expands up?


  • Laura

    Caleb, Good question. We have another post that will answer it for your here: https://masonbottle.com/blogs/news/116277764-the-number-one-mistake-parents-make-when-heating-breast-milk


  • Caleb

    How do you heat your mason jars up to body temp for feeding the baby?


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@faustisland just bought a pack of Mason Bottle Silicone Nipples, and then combined one with a classic blue mason jar she had at home. Extra adorable!

@valeryphalon.photography uses Mason Bottle Silicone Sleeves to make toddler training cups for her big girls.

@headygrimm gets a Mason Bottle + Silicone Sleeve ready for her little one. She got the whole bottle including the jar as part of the Essential Mason Bottle Gift Set, but you can also make your own with jars from home using the Mason Bottle DIY Kit.

@loveandcovenant uses the 8 oz DIY Kit in combination with their mason jars from home.

@eyecreate_ gave her little lade The Original Mason Bottle. The width of mason jars makes them easy to hold for little hands.

@headygrimm got the Essential Mason Bottle Gift Set for her little one. It comes with both size bottles, both sleeves, and set of extra set of Medium Flow Nipples.

Paola used Mason Bottle with her son Max from the day they brought him home from the NICU. Though he didn't take to the preemie nipples in the hospital, he latched onto his Mason Bottle immediately!

@sriesland stocked up on mason jars for pumping at work, then she got a Mason Bottle DIY Kit to turn those jars into baby bottles.

@MasonBottle we like to use our 4 oz. sleeves with baby food portions.





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"I wish I knew about these before I had my shower, and avoiding all the plastic bottles I ended up with. They will also make great glasses after bottle use is over. Also happy to see the Made in the USA mark on the product as well." -Cathryn

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"The next best thing to breastfeeding and the world's best shower gift! I love that I will never again have to buy a baby bottle because I already have tons of mason jars and they are so easy to clean. Our little guy loves his bottle!" -Susan

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"The nipples are very wide, like on an actual breast, and our daughter really liked them. Early on, she would suck really hard on the other nipples and make a very strange noise. As soon as we changed over to these her feeding became effortless." -Denielle




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