Reducing BPA exposure means avoiding food-contact plastics, especially during heating, and choosing glass, stainless steel, or ceramic containers instead.
Bisphenol A (BPA) is a chemical used in some plastics and resins, and it can leach into food and drinks. The concern isn’t about zero risk—it’s about practical, everyday choices that lower your family’s exposure, especially for infants and children. The most effective changes target how you store, heat, and handle food and drinks.
What Household Products Contain BPA?
BPA is most common in polycarbonate plastics (often clear and shatter-resistant), the inner linings of food cans, thermal paper receipts, and some dental sealants. The National Institute of Environmental Health Sciences (NIEHS) identifies these as the primary routes of exposure for most people. The recycling code on a plastic item offers a clue: codes #3 (PVC) and #7 (other) are more likely to contain BPA, while codes #1, #2, #4, and #5 are safer bets for being BPA-free.
How Do You Reduce BPA in Food and Drinks?
The single biggest step is to stop heating plastic. When plastic containers are microwaved or run through the dishwasher, heat breaks down the polymer, causing BPA to leach more readily. Switch to glass or ceramic bowls for microwave use. Never pour hot coffee or boiling water into a plastic travel mug. The Mayo Clinic’s guidance is clear: choose stainless steel, glass, porcelain, or ceramic for any direct contact with hot food or drinks.
For canned foods, the lining often contains BPA or a substitute. The practical fix is to prefer fresh, frozen, or dried options where possible. When you do buy canned, rinse the food (like beans or vegetables) before cooking, which washes off a portion of any leached chemical. This is a small step that costs nothing.
Paper Receipts and Hand Washing
Thermal paper—the shiny kind used for most store and ATM receipts—is coated with BPA (or BPS) that transfers easily to your skin. The Washington State Department of Health points out that handling receipts and then eating with unwashed hands is a direct route of exposure. Decline the receipt when you can, or take a digital copy. If you handle one, wash your hands before you touch food. Hand sanitizer, oddly, increases the absorption through skin, so soap is the tool.
Baby Products: The Highest Priority
Infants and children are the most sensitive group for BPA exposure, and their exposure routes are different. Bottles, sippy cups, and pacifiers made before 2013 are likely made with BPA. If you’re using older family hand-me-downs, replace them with glass bottles or BPA-free labeled plastic ones. NIEHS emphasizes that the developing body processes this chemical differently, so the reduction play is most meaningful here. Also, never microwave baby bottles—even if they’re labeled BPA-free—and avoid putting plastic teethers or toys in the dishwasher.
The label “BPA-free” is a good step, but it’s not a perfect shield. Manufacturers often substitute with similar compounds like BPS, which may pose comparable concerns. The safer strategy is to reduce the use of all polycarbonate plastics where a glass, stainless, or silicone alternative exists, especially for hot liquids and acidic foods (tomato sauce, citrus).
| Action | Why It Works | Priority |
|---|---|---|
| Microwave and wash in glass or ceramic only | Heat is the primary trigger for BPA leaching from plastic | High |
| Switch to fresh, frozen, or dried foods over canned | Eliminates the main dietary source of BPA | High |
| Decline paper receipts or handle and wash | Thermal paper transfers BPA directly to skin | Medium |
| Replace pre-2013 baby bottles and cups | Infants are the most vulnerable group | High |
| Check plastic codes — avoid #3 and #7 | Quick visual guide to likely BPA-free plastics | Medium |
| Don’t use scratched or cracked plastic containers | Damage exposes more surface area to leaching | Medium |
| Hand wash instead of machine-washing plastics | Dishwasher detergents and heat accelerate leaching | Medium |
The body’s ability to process and eliminate BPA is decent—most is metabolized and excreted in urine. The game is not paranoia, but pattern: consistently making the swap to glass and fresh food removes the biggest sources, and everything else is a smaller, more manageable lever. For baby items, that one high-priority swap of old bottles and cups covers the most sensitive years. There is no credible evidence that trace amounts from occasional plastic use harm adults, but the low-effort swaps above bring the family’s exposure down meaningfully without an expensive lifestyle overhaul.
FAQs
Does boiling water in a plastic kettle release BPA?
Yes, if the kettle is made of polycarbonate plastic. Heat accelerates BPA leaching significantly. A stainless steel or glass electric kettle eliminates this concern completely. Check the manufacturer specifications if you’re unsure.
Is it safe to store leftovers in plastic containers?
Storing cold leftovers in plastic is lower risk than heating, but acidic foods (tomato sauce, vinegar dressings) can still cause some leaching over time. The safest approach is to use glass containers for storage and skip the step of transferring from plastic to glass before reheating.
Can BPA be absorbed through the skin from food packaging?
BPA in modern food packaging is bound into the plastic matrix, so direct skin absorption from touching a bottle or container is minimal. The risk is far higher from ingestion after leaching into food or drink. Paper receipts are the real hand-transfer concern, not the container itself.
References & Sources
- National Institute of Environmental Health Sciences. “Bisphenol A (BPA).” Primary health reference on BPA sources, health concerns, and reduction strategies.
- Washington State Department of Health. “BPA and Phthalates: Questions and Answers.” Guidance on exposure routes including receipts and plastics.
- Mayo Clinic. “BPA: Are there concerns about plastic food containers?” Practical medical advice on container choices and heating risks.