Customers praised the dishwasher-safe, rust-resistant lids as "great for storage" with strong seals. However, many reported threading issues causing leaks and difficulty opening. Some found them "incredibly hard to get off" and noted they don't fit standard mason jars well. Quality concerns included cracking and breakage.

  • 5 stars: 43 (59%)
  • 4 stars: 8 (11%)
  • 3 stars: 6 (8%)
  • 2 stars: 7 (10%)
  • 1 star: 9 (12%)
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Michelle Saunders
gift

I purchased for my son and daughter in law as they are expecting their first child. She is very excited and can't wait to use the bottles

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Amber Knott
Great way to reduce waste!

I love these lids as an alternative to the metal ones. No banged up rusty metal lids, and I can just grab a white chalk pen and write the dates on the lids and then wipe them clean after use. Win!

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Molly Gerky
Great Selection and Quality

I’m in love with these bottles, everything about them is amazing. The quality is hands down, the best I’ve seen. The fact that they’re dishwasher safe makes my life so much easier, and the sustainability aspect is admirable.

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Ysenia
Hard to open but work

I've been using these since 2021. They did their job and I loved freezing breast milk with them. However they're incredibly hard to get off with the silicone ring and everytime I take them off I feel like I'm straining my hand. Not ideal and very frustrating.

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Anela Pasco
Great glass jars, not functional

These are great jars for storage. Using the bottles with the nipple was difficult. It's hard to secure the cap and the cap get in the way of feeding; lots of leakage with bottles since they do not secure properly.tried removing cap, but it broke completely. Nipples are soft, but could be softer.

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Claire
Poor seal and leaks

I bought a few sets of these a while back but I have not been able to use them. Each cover and seal leaks despite adjusting the seal on the cover and trying different mason jars.

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NATALIE DUNCAN
So Useful!!

I use these every day for breast milk storage and feeding baby on the go. The jars are super easy to clean and use and it’s a simple and quick switch from storage to bottle without transferring and creating new dishes. I use the mason bottles more than any of my other plastic bottles.

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Keyona Ortiz
Similar to opening a pickle jar

They are nice because they won't rust. I have to use everything I got, in order to open these. Grandma often times can't get them open at all. I still use them everyday.

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Gabriella Morrone
Plastic Storage Lids

I love Mason Bottle products and would like to keep using them, however I was disappointed on how quickly the plastic lid cracked.

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Andi
Couldn't thread on

I could never get these to thread on right. I tried several times and even asked someone else to try. It never made a leakproof seal and kept spilling the milk. I guess the tread pattern isn't quite right.

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Julie Polevoy
Love these!

I love the colorful lids and how universal they are. I use a lot of glass/mason jars and these are so convenient and help mark what's baby's versus ours!

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Sarah Parsons
Excited to use!

Nipples, lids, covers, and plastic lids all seem to be made of good materials and thankful everything is made in the USA. I'm excited as a first time mom to be able to reuse mason jars I already have. The only thing is not being able to find an adapter to manual pump into the mason jars. Right now it doesn't seem like there are options to do this - MB, if you could bring the adapters back, that would be great!

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Cc
Previous lid style

Got a couple sets of the previous lid style. They leak, don't seal all the way and are almost impossible to screw on the jars. Hopefully these are improved. The old style are a waste of money.

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Kaitlin McKenna
Best purchase yet!

We love our mason bottles but the lids that came with the jars were starting to rust and didn’t wipe off as well. These are have been great because they hold up well in the dishwasher, we can label the jars without worry, and they stack really easily. We recently went camping and used these to transport the bottles and nothing leaked! Would highly recommend to anyone as these will be something we can use for years to come.

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Shannon Burkhalter
Does not fit ball jars

These are falsely advertised to fit ball mason jars. They do not fit them- the lid has to be forced on to fit a ball mason jar- leading to milk spillage when you try to open it. The threads don’t line up properly which is why it has to be forced on. I tested 5 DOZEN of these lids and they all had the same issue. So you have to use their jar which is more expensive than a ball jar. They also won’t handle the return of their defective products- you’re responsible for the shipping costs and getting a label and tracking to return the defective product they send. Have never had a company handle a return this way when they sent a defective product.

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Shannon Burkhalter
Does not fit ball mason jars

These are falsely advertised to fit ball mason jars. They do not fit them- the lid has to be forced on to fit a ball mason jar- leading to milk spillage when you try to open it. The threads don’t line up properly which is why it has to be forced on. I tested 5 DOZEN of these lids and they all had the same issue. So you have to use their jar which is more expensive than a ball jar. They changed their lids from their original ones, which is probably part of the issue- who knows maybe the old ones had issues too. The new ones are very cheap and flimsy along with the threading issues. If you need lids that actually fit, ball makes a plastic lid (so you can avoid the two piece metal ones rusting) that fits jars perfectly. They also won’t handle the return of their defective products- you’re responsible for the shipping costs and getting a label and tracking to return the defective product they send. Have never had a company handle a return this way when they sent a defective product.

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Christina Hart
Convenient to have anytime!

Bought two sets! One for my expecting sister and one for myself! These will come in handy for her to store milk for now and pureed food later and for myself to store food left overs of all kinds, especially liquids like chicken broth!

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Christina

Great lids

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Christina

Great lids

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Rachel B.
Functional but…

The lids work great but my only complaint is there should be grips on the sides to help open them. They are kinda of slippery and hard to open when screwed on all the way. I love the colors and they still work just hard to open.

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Hope
NOT leakproof, hard to get on and off jars

I had high hopes for these lids but was ultimately disappointed. The lids I received were a poor fit for regular mason jars (I haven't tried them with mason bottle branded jars) and are difficult to screw on and off. If they aren't perfectly lined up with the jar, they get stuck and need some serious effort to unscrew. That on its own is not such a big deal, but more importantly...they leak! I have not been able to get a leakproof seal with any of the 8 lids I received. I use mason jars to both transport and freeze breastmilk and have used these lids on and off for several months. I have finally stopped using them all together after one too many times opening up my cooler to find the bottle has tipped over and a significant portion of the milk has leaked out. Not worth the gamble. Save yourself the trouble and just get a fresh pack of reusable Ball jar lids instead. The seal is perfect and the rings always fit.

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Ysenia
Works but not great

I have been using these for two years now and I do not like them. They do their job and are nice to have but they are hard to get threaded on the jars correctly. So they leak and you have to adjust them several times. Not sure if its just me and my husband but we find them difficult to use and getting them off from frozen jars is a feat. I bought the ball brand plastic lids and they go on so easy and they're also cheaper for more. Overall I love this brand but these are not it for me.

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Saumya Kaushik
Baby bottles

I absolutely love them. We needed couple more so bought a generic brand and realised how good our mason bottles are and wish had bought more at the start. We are in Australia so getting them shipped is expensive but it's absolutely worth!!!

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Alexandra Cayot
Convenient product

Like the tops. Don’t have to worry about the metal tops rusting.

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Velecia
Most useful

It fit on regular Mason jar and no rust Win win

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BONSIGNORE JOHN

Doesn't fit on my mason bottle very hard to twist off but love my mason cup.

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Jessica Watts
Great product OTHER than the plastic rings

The product works great with the classic metal mason jar rings but after trying the mason brand jars and my own mason jars I couldn’t get either of the two plastic rings to seal well enough that if tugged on, wouldn’t pop off, spilling any contents within them all over. Contacted customer service and they gave me some suggestions on where to line up certain parts of the jar with the ring and still had no success. I tried my own metal rings which created a fantastic seal and customer service was wonderful and sent me a 4 pack of their own metal rings. It would be great if the feeding subscription had an option to include the metal rings instead of the plastic as it sounds like for my next box I will still have to receive the plastic rings which I won’t be using since the metal work so much better.

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Danielle Smith
Love for storage!

Love these for an easy, organized, non toxic breast milk storage option. I have not tried them as bottles yet but I have high hopes. I have noticed that when pouring the milk from the mason jars to a bottle the milk spills which is disappointing. Any recs on how to avoid spilling breast milk??

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Charla kirkland
Mason jar Durability and appearance

I have received my first subscription set in the exact time frame. It came very well wrapped and boxed. The jars are as expected durable and clean. I am a Mason jar fanatic so when I saw you could have mason jar baby bottles/food storage I was 100% about it. The nipples amd storage lids seem good. The plastic rings I will have to use first before I make a comment on them. My baby will be born in a few days and I'll have an updated review on the use of the bottles. It also came with helpful tips on how to heat, store and use them. Can't wait to try them. I'm very excited.

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Jenni Laszlo
Great idea not well executed

Wanted to live these bottles and jars but the plastic is not well made and many lids arrived broken as well as a broken bottle. Mason replaced these items when I let them know which was great. However the bottle tops with the nipple spins around and does not seal, so I cannot use the bottles without spilling milk everywhere.

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