Lansinoh Breast Milk Storage Bags, 50-Count

After discovering that Madela bags can make your milk smell and taste rancid, I switched. But, I also did a little comparison work:

Lansinoh bags can hold up to 6 ounces of breast milk.
Medela bags can hold up to 5 ounces of breast milk.

Lansinoh: On the simplest level, the Lansinoh bag is easier to open and pour milk into than the Medela bag. The reason I find it easier is because of the material the bag is made out of and the bag is more pliable. You open the bag by removing a small strip that is perforated on the top. There are two seals on these bags, which is a huge plus. It's a comfort in preventing leaks.

The reason why Lansinoh wins the freezing process is because they lay flat very well. I've found that when laid flat, the bag freezes into a solid rectangle of milk that is consistent in thickness. It is also easy to "stack" once frozen which is very helpful for organizing. It's also important to squeeze all the air out of the...Read more

Out of the 3 brands of storage bags we've used (Medela, Lansinoh, and Simplisse), my favorite is the Simplisse.

The Medela bags only have a single zipper, and I had a lot of problems with bags leaking through the opening either during freezing or thawing. Also, the Medela bags only hold about 5 oz, so that meant having a LOT of bags to keep track of. The Lansinoh and Simplisse hold 8-10oz each.

The Lansinoh bags were our next shot. While they have a double zipper, the bags are super thin. Consequently, we would have a lot of problems with bags leaking elsewhere - either through an undetected puncture or through one of the seams. I would guess about 1 in 4 bags would spring a leak when thawing.

The Simplisse bags have a double zipper and are thicker than the Lansinoh - though not quite as thick as the Medela. In the box and a half we've used so far, I've had probably 3 leaks - and 2 of which were definitely my fault (the bag froze around the edge...Read more

I've tried them all - and these are the best! Nice thick plastic, secure closure, never leaked once (and I had a LOT of milk!).