Good price and product seems great but after three months of use, we are finding about 1 in 5 have leaked after being frozen... when moving to defrost in the fridge much of the milk is going to waste due to the bags cracking/breaking... dont trust these, try a different brand.

I’d give zero stars if I could. I’m so frustrated with these milk storage bags as they continue to all leak. I’ve just started to thaw out the freezer milk since returning back to work from maternity leave and almost every one that I’ve thawed out has leaked everywhere like this! I have worked too hard trying to save a good freezer full of milk, now SO much has gone to waste.

I've been using these for months with only one single bag developing a hole in it while thawing on a bowl of warm water. Otherwise zero issue with them. the directions say to fill them up to 6 oz but 6 1/2 hasnt been a problem for me. It is best however to freeze in smaller increments to have the exact amount you need without waste. The more plump filled bags also have more wasted air space between them when put together into a gallon size freezer bag block of breastmilk bags. They thaw and warm very fast- much faster than a bottle. In the early days id actually pour my milk into the bags just to warm it faster to serve to baby. You can pump directly into the bag but i found that the bags can become crooked without noticing and spill your milk while pumping so it didn't work well for me. Still nice its an option if you forget a bottle and need to empty your breasts on the go. They fit perfectly in a flat bottom freezer bag and keep well when freezer bags are doubled up. i use a permanent marker pen to write on them and it stays on perfectly. I wont be using any other kind.

I really like these bags. I have filled them with only a few milliliters up to 6 oz. None have ever broken or leaked. They served us well during my twin pregnancy and now during my baby boy’s breastfeeding journey (almost one year). I can recommend these.

These bags are really sturdy and freeze flat. I've purchased other brands where the corners have been sharp and would rip though the gallon freezer bag I store them in but these don't do that and are great! I've purchased at least 30 boxes of these so far and will keep repurchasing :)

We've been using the Lasinoh storage bags for about 6 months. For the most part they work great, but we have had a few problems with a few of the bags leaking. You can tell it is a problem with the bag and not a closing or seal problem. We have tried other brands and this brand does not work any better or worse than others.

These bags are excellent quality and the zip lock is so reassuring and doesnt require me to fuss around alot to get the seams lined up. The only downside is the bags are super flimsy and wiggle while you try to pour milk in. This has caused me to spill milk all over my counter as I've been trying to fill the bags up. Love the flat storage and zip lock, as I said though.

Out of at least 10 100ct boxes of these, I’ve only had one that was torn, and even that tear was at the top of the bag so I didn’t lose any milk transferring to a new one. I don’t trust any other brand! The only negative thing I have to say is that there is some inconsistency in the boxes. Some boxes have bags that are noticeably thinner than others, but they are still sturdy enough to keep from tearing or leaking. It hasn’t caused issues, but did make me worry a bit when I noticed it. I’m still giving five stars because even the thinner bags work great.

I have used these bags for over a year and half for my milk. I have tried other bags but always come back to these. The seal well and easy pour. Only problem is you need to hands to pour in a bottle. My milk has always been fine frozen in these bags.

Perfect quality and sterile