A very good product. Jappréhendais use, but being careful and taking precautions with the passage of the bottle (narrow aperture), no worries! I have not yet tested a long shelf but freezing, passing one week in the freezer and the use of milk, convincing result. Plastic is strong and the zip is closed very well, no fear that the milk flowing. The label in order to note any relevant information is essential. Certainly, the bags are disposable, but I find it reassuring and very hygienic. If the use is very common, it may be expensive, but for the exits, solo evenings with the child and dad, or even nannies, this is great. Once discovered, it is hard to pass sen.
