Nick HowarthFounder, BBHC · Founder - BBHC Health Coaching

WTF is BPA? And why is it on my receipts?#BPA #tips #wellness #metabolichealth

13 Mar 2026 · 1 min

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1:21

In this episode of the "What the Fuck Is That?" series, the host explains that the small thermal receipts given at stores are coated with bisphenol A (BPA), the same chemical that sparked controversy in plastic bottles. Unlike BPA locked inside plastic, the BPA on thermal paper sits on the surface, so handling the receipt transfers a powdery residue onto the skin. BPA can mimic estrogen and bind to hormone receptors, potentially disrupting metabolic, developmental, and reproductive pathways. The host highlights that frequent handlers—cashiers, accountants, or anyone who keeps receipts in pockets—may receive a daily dose of this hormone‑mimicking chemical. The episode concludes with a practical recommendation: opt for digital receipts whenever possible to reduce exposure, and encourages viewers to stay informed about hidden chemicals in everyday items.

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What the fuck is BPA? And why is it on my receipts? That little receipt you get from the store is not just normal paper, it's thermal paper. Instead of ink, it has a special chemical coating that turns black when heat is applied, like the little slip printers that you see at the shops. One of the chemicals used in that coating is BPA. Yes, the same bisphenol A that caused all the drama with plastic bottles. But here's the difference: in plastic, the BPA is locked into the material. On your store receipt, it's on the coating, sitting right on the surface. Touch the receipt with your hands and residual BPA comes off of the receipt and onto your skin. You grab the paper and the powder tags along for the ride. Now, the concern with BPA is what it does inside your body. BPA can behave a lot like estrogen. Now, hormones run your body kind of like a control tower runs an airport, but you want the real radio operator controlling the planes, not just some guy who grabbed the mic and is now giving random directions. BPA can bind to hormone receptors in your body, meaning it sends signals that do not belong there. That means it can interfere with control systems that regulate metabolism, development, and reproduction, and other things too. So when you're grabbing a receipt, crumpling it up, stuffing it in your pocket, pocket, what you're basically doing is handling a tiny hormone impersonator. And some people handle hundreds of these things a day, like cashiers or accountants. So skip the thermal receipt where you can, take a digital one, because groceries are expensive enough without adding a toll to your health. See you in the next episode of What the Fuck Is That? Because you deserve to know.