You can not sterilize them and it is problematic with this time of tubes

I will try to be neutral. I was not a fan from the beginning of these tubes. I bought them for my second breast pump, they do have suction, but you can see that they are not the same when you see that is very easy for milk to go in the tubes. They say that you can not sterilize them, and you can not sterilize the medela ones either, but I have never had one drop of milk in my medela, unlike these system. I tried to clean the tuber with hot water, because I was very worried about the spill coming to the machine, and so I did. They do not work anymore.

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