Research finds reusable water gallons pose no significant cancer or hormone risk

A joint research study conducted by Universitas Airlangga, Universitas Hasanuddin, and Universiti Teknologi MARA Malaysia has found that drinking water from reusable polycarbonate (PC) gallons that meet food safety standards does not pose a significant risk of cancer, hormonal imbalances, or reproductive system disorders.

The study, published in the journal AIMS Environmental Science, examined 96 respondents in Surabaya to investigate the link between Bisphenol A (BPA) exposure from bottled water and various health issues. Researchers found that the correlation between BPA exposure from these containers and health risks was very weak, with a correlation value of r = 0.151.

Lead researcher Dr. Sudarmaji noted that while the relationship is statistically significant, BPA is likely only one of many factors—including genetics, air quality, diet, and infection—that influence allergies and endocrine issues. The findings suggest that as long as reusable gallons are produced according to industry standards and safety requirements, the water remains safe for consumption.