Are Chemicals Leaching From Disposable Cups? BPA and Phthalates

Your morning coffee in a disposable paper cup isn't just paper. A 2026 study published in the Journal of Environmental Science and Health found that polyethylene and polystyrene linings act as a delivery system for a cocktail of hazardous chemicals directly into your drink.

Researchers tested 40 disposable cups and found DEHP, a common phthalate, at concentrations up to 0.95 mg/kg. They also detected BPA, a known endocrine disruptor, in every sample tested. Perhaps most concerning was the presence of PFOA, a persistent perfluorinated compound, in several cups. You can read the full breakdown of the findings here.

These chemicals aren't just sitting in the lining. They migrate into your hot beverage the second it hits the cup. This happens because the printing inks, surface coatings, and plastic linings are not designed to withstand the heat of your coffee or tea. It is a massive oversight in how we package food for daily consumption.

The solution is simple: stop relying on single-use convenience. Carry a stainless steel or glass tumbler that you know is safe. If you are ready to ditch the plastic-lined waste for good, we have curated a selection of non-toxic kitchen alternatives that won't leach chemicals into your morning routine.

Source: Kıralan S, Toptancı İ, Sezer C (2026). J Environ Sci Health B.