You can significantly cut your BPA exposure by making a handful of targeted changes to how you eat, drink, store food, and handle everyday items. BPA (bisphenol A) is an industrial chemical found in can linings, hard plastics, thermal paper receipts, household dust, and even dental sealants. It mimics estrogen in the body, and the European Food Safety Authority has steadily tightened its safety threshold over the years. Most exposure comes from diet, but skin absorption and inhaled dust contribute more than most people realize.
Rethink Canned Food
Canned food is the single largest dietary source of BPA for most people. The chemical leaches from the epoxy resin that lines the inside of metal cans. A Canadian Food Inspection Agency survey of over 400 canned products found BPA in 41% of samples, with average concentrations varying widely by category. Canned vegetables had the highest average levels at about 56 parts per billion (ppb), followed by canned meat and canned fish, both around 44 ppb. Canned fruit came in much lower at roughly 6 ppb.
The highest individual readings were striking: a corned beef sample hit 479 ppb, a sardine sample reached 395 ppb, and one vegetable product measured 151 ppb. These outliers show that certain products, particularly imported processed meats and oily fish, can carry far more BPA than the category average suggests.
Your practical moves here are straightforward. Choose fresh, frozen, or dried versions of foods you currently buy canned. When canned food is the only option, fruits and pie fillings are the lowest-risk choices. Some brands now use BPA-free can linings, though that comes with its own caveats (more on that below). Glass-jarred alternatives, like tomato sauce in glass instead of cans, eliminate the lining issue entirely.
Stop Heating Food in Plastic
Heat is the biggest accelerator of BPA leaching from polycarbonate plastic. Microwaving food in plastic containers or running them through the dishwasher increases chemical release substantially. The American Academy of Pediatrics has specifically warned against both practices. Beyond direct leaching into food, heating plastic containers can cause BPA to become airborne and eventually settle into household dust.
The fix is simple: transfer food to glass or ceramic before microwaving. Store leftovers in glass containers with silicone lids. If you use plastic containers, hand-wash them with mild soap instead of running them through a hot dishwasher cycle. Old, scratched, or cloudy plastic leaches more than new containers, so replace worn-out food storage rather than continuing to use it.
Handle Receipts Carefully
Thermal paper receipts, the shiny kind printed at cash registers, gas pumps, and ATMs, are coated with BPA that transfers directly to your skin on contact. This isn’t a trivial source. A study of cashiers found that handling thermal receipts tripled urinary BPA concentrations, and dermal contact from receipts accounted for 51% to 84% of total BPA levels in cashiers’ urine, with an average contribution around 71%.
BPA can be absorbed through the skin with up to 46% efficiency. Hand sanitizer and lotion make things worse, not better. Alcohol-based sanitizers and moisturizers increase the rate at which BPA penetrates the skin. Using hand sanitizer immediately before or after touching a receipt can spike both urinary and blood BPA levels almost instantly.
Decline paper receipts when possible and opt for digital versions. If you need the physical copy, avoid rubbing the printed side. Wash your hands with soap and water (not sanitizer) after handling receipts. Cashiers and others who handle receipts all day should consider wearing nitrile gloves.
Reduce Dust Exposure at Home
BPA shows up in 95% of indoor dust samples in studies from the eastern United States, with concentrations ranging from less than 0.5 to over 10,000 nanograms per gram. It gets there through the slow breakdown of plastic containers, electronics, furniture, and personal care product packaging. Physical wear and tear on household plastics sends tiny particles into the air, and cleaning products can accelerate chemical leaching from coated surfaces.
Regular wet mopping and dusting with a damp cloth removes more of these particles than dry sweeping, which just redistributes them. Vacuuming with a HEPA filter traps fine particles that standard vacuums recirculate. Good ventilation helps too, especially in rooms with lots of electronics or new plastic items. This is particularly worth paying attention to in homes with young children, who spend more time on floors and put objects in their mouths.
Be Skeptical of “BPA-Free” Labels
Products marketed as BPA-free typically substitute closely related chemicals, most commonly bisphenol S (BPS) and bisphenol F (BPF). A systematic review published through the EPA found that BPS and BPF are as hormonally active as BPA. They show similar endocrine-disrupting effects, including altered organ weights and reproductive changes in animal studies. BPS has potencies comparable to the body’s own estrogen in certain cellular pathways that control cell growth and death.
This doesn’t mean BPA-free products are worthless, but the label alone shouldn’t give you full confidence. The more reliable strategy is to minimize contact with all polycarbonate plastics and epoxy-lined containers, regardless of what the label says. Glass, stainless steel, and uncoated ceramics don’t have this problem at all.
Filter Your Water
BPA can enter drinking water from plastic pipes, containers, and environmental contamination. Reverse osmosis systems are the most effective home option, with studies showing retention rates of 83% to 98% or higher for BPA. Activated carbon filters also adsorb BPA effectively, though their capacity depends on filter quality and replacement frequency. A standard pitcher filter with activated carbon will reduce BPA levels, but a dedicated under-sink reverse osmosis system offers more consistent removal.
Storing water in glass or stainless steel bottles instead of plastic further reduces exposure. Even PET plastic bottles (the common disposable kind, labeled with a recycling number 1) have been found to contain trace amounts of BPA despite the fact that BPA isn’t an intentional ingredient in PET manufacturing.
Protect Infants and Young Children
The FDA no longer permits BPA-based polycarbonate resins in baby bottles, sippy cups, or infant formula packaging. These regulations, enacted in 2012 and 2013, formalized what the industry had already done voluntarily: manufacturers abandoned BPA in these products before the rules changed. So if you’re buying new baby bottles and cups from major retailers, they won’t contain BPA.
The bigger risk for young children comes from other sources. Canned baby food and toddler meals may still use lined cans. Plastic toys, teething rings, and food-contact items made overseas may not follow the same standards. Choosing glass baby food jars, preparing fresh purees, and selecting toys from manufacturers that disclose their materials are all practical steps. Because children have lower body weight, the same absolute amount of BPA produces a proportionally larger dose, making reduction efforts more impactful for them.
Know the Less Obvious Sources
Dental sealants and composite fillings contain resin that can release small amounts of BPA, primarily during the first 24 hours after application. The American Dental Association notes that the total amount is extremely low and comes from a thin surface layer exposed to air during curing. BPA release drops sharply after the first day and effectively stops shortly after. If this concerns you, rinsing and spitting immediately after a sealant procedure helps clear surface residue.
Aluminum cans for beverages, including beer and soda, use polymer coatings on the interior that contain BPA. This is the same epoxy lining issue as canned food. Choosing glass bottles or draft beverages over canned options reduces this exposure. Even items you wouldn’t expect, like the lining of bottle caps, can contribute small amounts.