The Science on Bisphenols in Thermal Receipts Is Getting Harder to Ignore
About 80 percent of paper receipts from major US retailers still contain bisphenol S, according to the Ecology Center’s 2022 study of 374 receipts collected from 144 chains. BPA itself had nearly disappeared from those samples, falling to 0.3 percent from 9 percent five years earlier, but BPS took its place and basically stayed there at 79 percent. Pergafast 201 and other nonbisphenol developers showed up on about 20 percent of receipts, ten times the rate from 2017, mostly at grocery chains and big box stores with the purchasing clout to push their suppliers. Walk into three or four independent pharmacies on a weekday and pull their receipts, and odds are good you’ll find BPS on every one of them, same chemical class as BPA, similar endocrine disrupting profile, different name on the safety data sheet.
Washington got tired of waiting for the industry to sort itself out. A rule that took effect January 1, 2026, under the Safer Products for Washington law bans every bisphenol in thermal paper above 200 parts per million, cash register receipts and parking garage tickets, and shipping labels alike. No other state had gone after the whole chemical family before. California’s Assembly Bill 1604, from Catherine Stefani out of San Francisco, would phase out BPA by 2027 and BPS by 2028 if it survives the legislature. None of this appeared out of nowhere. Back in April 2023, EFSA rewrote the tolerable daily intake for BPA so aggressively that the old number and the new number barely seem related, 4 micrograms per kilogram of body weight per day versus 0.2 nanograms, a 20000 fold cut. EFSA’s own panel said the quiet part out loud, that basically everyone from infants to adults was already exceeding the new threshold by somewhere between a hundred and ten thousand times over. Something like 800 studies between 2015 and 2023 fed into that decision. Brussels banned BPA from food contact materials in December 2024, and a 2026 EU regulation now requires registration for thermal paper imports coming in from China.
Cashiers have been hearing about bisphenols for long enough that most of them stopped paying attention around 2018 or so. The International Archives of Occupational and Environmental Health published a biomonitoring paper back in 2016 that finally gave the exposure gap a number, 8.92 micrograms per liter median urinary BPA in cashiers and 3.52 in controls who had no occupational contact with thermal paper. Skin absorption was responsible for 52 to 84 percent of that total, depending on how the model was set up, with a geometric mean ratio of around 71 percent. Pregnant cashiers came in at 2.8 micrograms per gram creatinine in a separate study, teachers at 1.8, and industrial workers at 1.2. Each gram of thermal paper carries about 20 milligrams of BPA in unbound form on the coating surface, and it moves to the skin on contact without much resistance.
Frederick vom Saal’s group at the University of Missouri published the hand sanitizer study in PLOS ONE back in 2014, and it remains one of the more unsettling pieces in the whole literature. Dry hands holding a receipt for 60 seconds absorbed maybe 3 micrograms. Hands prewetted with alcohol based sanitizer absorbed close to 300 micrograms in a few seconds, roughly a hundred times more, because the sanitizer formulation contains penetration enhancers that basically open the skin up. What really landed was the food part of the experiment, subjects using sanitizer, grabbing a receipt, then eating French fries without washing their hands first. Serum BPA shot up to around 7 nanograms per milliliter within 90 minutes. All of that data is from 2014. Every checkout counter in the country added a sanitizer dispenser during 2020, and most of them never took it away, but the published literature hasn’t caught up with what that means for cashier BPA exposure in practice.
CVS finished moving all 10000 stores to phenol free paper, getting rid of BPA and BPS both. Target wrapped up by late 2020. Costco wrapped up around the same time, Best Buy too, Whole Foods probably earlier, but nobody was keeping a scorecard, and the trade publications treated it more like a procurement footnote than anything worth a headline. Template activity at receipt generators like www.myreceiptmaker.com leans phenol free and digital these days among smaller operators, but that’s a self selecting crowd, the kind of business owner who already thinks about documentation, and it probably says nothing about the bodega two blocks over or the food truck that parks outside the office at lunch. Walmart still prints on phenol coated paper. Digital receipts are available there as an option, but the default is still a thermal printout, and the Ecology Center found bisphenols on Walmart receipts in their 2022 testing round.
Between 2017 and 2022, that split between big chains and everybody else told most of the bisphenol story. Big retailers with actual procurement departments tracked down Pergafast suppliers, signed contracts, and quietly moved on. The independent shops and regional chains mostly just kept reordering from whoever they’d always bought thermal rolls from, and those distributors had no particular reason to stop shipping BPS coated stock when it was the cheapest thing in the catalog. After January 2026, none of that flies in Washington anymore. Over in Europe, the Chemicals Agency went through 148 bisphenols and flagged 34 of them for restriction on hormonal and reproductive toxicity grounds, so the bench of available substitutes is getting pretty thin for anyone hoping to just swap in the next cousin molecule.
Pergafast 201 works in the same printers. The price stayed flat, and not a single customer at Target or CVS looked at the paper curling out of the printer on switchover day and thought something was different. Some chains offered nitrile gloves or finger cots to their cashiers, which sounds fine on paper until you picture actually wearing them through a lunch rush with eight people in line and the POS freezing every third transaction. Whether those gloves even make it into the break room cabinet depends entirely on who’s managing that particular shift. Nobody in any of the state regulatory proceedings seems to have picked up vom Saal’s hand sanitizer findings from 2014, which is strange given that every checkout lane in the country bolted on a sanitizer dispenser starting in March 2020 and most of them are still there. More peer reviewed absorption data keeps showing up in the journals every few months, and exactly zero of it has filtered down to the person ripping a receipt off the pump printer at a Shell station on a random Thursday around three in the afternoon.
Check live fuel prices near you before you set off.
Spotted something? Got a story? Email news (@) deeside.com
NEW: Add Deeside.com as a preferred source on Google to see more of our trusted coverage when you search.
Latest News
