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Title: Soft spout is impossible to clean!
Review: My 10 month old daughter has only ever had water to drink out of this sippy cup and I clean it daily, but for some reason the inside of the spout is now spotted with black mold that is impossible to scrape or clean off. It's like it's embedded right in the soft "rubber"(?). The hard plastic parts are easy to clean, but the different material used on the spout to make it "soft" is impossible to clean properly.
