storage bag good bm storage bags that can freeze flat?

When storing breast milk in storage bags, do you prefer to freeze them as a flat bag or standing up...
Storage bags any good and cheap breast milk storage bags to recommend? thanks so much
Hospital bag - need to pack breast milk storage bags or bottles? Hello everyone! I'm packing my hosp...
breast milk storage can milk be pump directly to autumnz storage bags using spectra s1?
Anyone bought breast pumps and BM storage bags from taobao? Are they any good? Breast pumps from tao...
Breast milk storage If I keep my expressed breast milk in the fridge first , after a few hours can I...
Breast Milk Storage Is Bottle or milk bags storage better for storing breast milk in fridge? Why?