Mason Bottle ガラス製母乳保存瓶 密閉蓋付き、4オンス、12個パック

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.

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.

It has a 2oz line but not a 4oz line at first I thought it was a messed up thing on my order but nope it wasn’t. I went back and saw it did say 4oz on the description and if you look closely on the pic it says 2oz. I use it for my pineapple juice for my morning cocktail (nonalcoholic) drink I do for homeopathic purposes but it’s a good buy none the less just wished I had gotten the 8 oz ones so I wouldn’t have to bring out my measuring cups as well when prepping for the week

Silicone gasket comes out for thorough cleaning. Nice universal design so the jars and lids and even gaskets are interchangeable with other mason jars. Downside is the measurements stop at 2oz. You can really only get about 3 to 3.5 oz maximum in the jars, especially leaving the necessary ½ inch of head room for expansion when freezing. Chalk pen marks clearly and easily on the lids and also washes off well. I'd like if they were 5oz. capacity with at least 3oz. markings. They can be difficult to open and close. But they seal well and I think they are the best thing out there for breast milk storage. Probably great for baby food too. Nice and environmental. Simple packaging

Using for breast milk storage, very useful. Tops fit other jars of the same size. I did have one break when I dropped it and one top crack. But they are pretty thick glass.