Mould build-up
My 5 year old loves drinking from this bottle, but the mould buildup is a real problem. It shows up at the junction between the nozzle and the straw, literally within 48 hours of washing it.
If you buy this, disconnect the nozzle from the straw and wash it daily, or you'll be dealing with mould constantly.
As for the company's claims about the product's benefits, it's too early for me to say whether any of that holds up.








