Can disposable beverage cups transfer chemicals into drinks?
Use caution with disposable cups for hot or acidic drinks. A 2026 Journal of Environmental Science and Health, Part B study found DEHP, BPA, photoinitiators, and PFOA in polyethylene and polystyrene based beverage cups from Turkey.
What is actually in it
Disposable beverage cups can include paper with plastic lining, polyethylene, polystyrene, printing inks, coatings, and colorants. These materials can leave small chemical residues in the cup.
Hot drinks, acidic drinks, alcohol, long storage time, and repeated reuse can increase contact between the drink and the cup.
What the research says
A 2026 Journal of Environmental Science and Health, Part B study tested 40 polyethylene and polystyrene based beverage cups from Turkey. DEHP was the most common phthalate. BPA was the main bisphenol found. Five photoinitiators were often identified, and PFOA was found in 2 samples.
This study does not test every cup or straw. It supports choosing glass, ceramic, or stainless steel for daily drinks, especially hot drinks.
What to do at home
Use glass or stainless steel cups for daily coffee, tea, water, and smoothies. Do not reuse flimsy disposable cups after they are scratched, cloudy, or warped.
For occasional cold drinks, keep the concern in perspective. The better habit is avoiding daily hot drinks in disposable lined cups.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Migration of phthalates, bisphenols, photoinitiators, and perfluorinated compounds in polyethylene and polystyrene based beverage cups. | J Environ Sci Health B | 2026 |