I was given the Avent bottles as a present.  Before using them I found out that many baby bottles contain BPA--a toxic chemical in plastic that leaches into the food or drink that's in it after washings or heating them and is very harmful to babies.  (Please do your research on BPA!)  I called Avent to ask what kind of plastic their bottles are made from and they told me polycarbonate, which is the worst plastic and contains BPA, and I did not like how the representative seemed to not care that they used this harmful plastic.  One way of knowing if the bottle you are… read full review »