The University of Massachusetts Amherst

Thomas Zoeller, 2016 PEP Fellow, quoted in Washington Post story on the best materials for reusable water bottles.

Thomas Zoeller, 2016 PEP Fellow, says in the Washington Post that until more research is done on various plastics, glass and metal are the best materials for reusable water bottles. Zoeller has studied the chemical effects of bisphenol A (BPA) which has been linked to hormonal disruptions in humans. He says bisphenol S, often used as an alternative to BPA, has not really been studied in humans and some animal studies suggest it could be disruptive as well.