Many baby bottles are made with polycarbonate—a rigid plastic that can leak bisphenol A into a bottle’s contents. Couple this with the fact that plastics have a multitude of detrimental environmental effects and it’s a good reason to consider switching your baby’s bottles to glass. Glass won’t leach harsh chemicals, regardless of liquid temperature. Of course, make sure to inspect the bottles often for chips and cracks. Take it one step further and replace standard rubber nipples with clear, silicone nipples. Silicone nipples are free of potential carcinogens and last longer making them better for your baby’s health and the health of the environment.

There are many different brands available. The above are by evenflo, available through the Natural Baby Catalog.