Negative Positive
Title: THEY LEAK!
Review: If you plan to pump and then store immediately upright in your fridge, these will work great for you. If, however, you plan to travel with these containers, be prepared for them to leak your precious breastmilk. The caps are not airtight! By the way, if you purchase the toddler non-spill spouts to go with the set...they also leak. I've experimented with varying the tightness and wetting the cap, but all to no avail.
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