Does drinking soda from cans raise your blood pressure compared to glass bottles?

What's actually in it

Aluminum soda cans are lined with an epoxy coating that keeps the drink from eating through the metal. Most of those liners are built from bisphenol A (BPA) or its close cousins. BPA leaches out of the liner into the soda, faster when the can is warm and the drink is acidic. Soda is both.

BPA doesn't just mess with hormones. It also tightens blood vessels. That's why measurable spikes in BPA can push blood pressure up within an hour or two of drinking from a can.

What the research says

A 2025 study in Sci Rep had the same volunteers drink the same soda from aluminum cans, PET plastic bottles, and glass bottles on different days. After the canned soda, urinary BPA jumped and blood pressure rose. Glass bottles showed the smallest bump. PET plastic fell in between.

The rise in blood pressure was small for one drink, but it's the same system that drives long-term heart risk. People who drink multiple cans a day keep BPA levels high around the clock. Add kids and pregnant women, who are more sensitive to BPA's hormone effects, and the case for picking glass gets stronger.

Canned beer, canned coffee, canned sparkling water, and canned tomato products all use the same epoxy liners. Acidic foods pull out more BPA than neutral ones. Tomato sauce in a can is one of the worst offenders.