Your Soda Can Is Leaching BPA. Glass Doesn't.

Drink your soda from a can or plastic bottle, and your body absorbs bisphenol A (BPA) along with it. Drink the same soda from glass, and you don't. A 2025 study in Scientific Reports put this to the test directly.

What the Study Measured

Researchers at the University of Freiburg had participants drink soda from three different containers: aluminum cans, PET plastic bottles, and glass bottles. Before and after each round, they measured urinary bisphenol levels.

Published in Scientific Reports (Plachetka et al., 2025), the results confirmed what we've suspected: BPA and its substitutes leach from cans and plastic into the drink. Cans are lined with epoxy resin. That resin contains bisphenol compounds. So does the PET plastic in bottles. Glass does not leach bisphenols.

The study also found associations between bisphenol exposure and blood pressure changes, adding to a growing body of research linking BPA to cardiovascular effects.

The "BPA-Free" Problem

Manufacturers switched to BPS and BPF when BPA came under fire. These substitutes are also bisphenols. They also leach. They also act as endocrine disruptors. Swapping one bisphenol for another didn't solve the problem.

Glass is the only container that doesn't leach bisphenols. Full stop. Browse non-toxic kitchen alternatives to see our glass food storage and bottle options.

Also see glass food containers for safer alternatives.

Source: Plachetka L et al. (2025). Urinary bisphenol levels and blood pressure after soda consumption from cans, PET and glass bottles. Sci Rep.