Is BPA in plastic food containers and bottles harmful?
BPA and phthalates are plasticizers that can migrate from some plastics into food, and are associated with endocrine-related health concerns; migration rises with heat and wear. "BPA-free" only addresses one chemical (sometimes replaced by BPS, a close relative), which is why many people choose glass, stainless steel, or food-grade silicone for food that gets heated.
Here is what the primary research we cite says about plastics migration, and the food-storage and feeding products in our catalog made from inert materials.
Products in our catalog that address this
- Glasslock 18-Piece Assorted Oven Safe Container Set The Low-Tox Home
- Stasher Silicone Reusable Storage Bag, Sandwich, 28 oz, Clear The Low-Tox Home
- Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Bottles, 4 oz, 4-Pack The New Parent
What the research says
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Heating plastic food containers releases millions of microplastic particles into water.
“We found that food containers exposed to high-temperature released more than 10 million microplastics per mL in water.”
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BPA migration from plastic containers rises steeply with temperature.
“by increasing the temperature from 40 to 95°C, the BPA migration increased four times in new baby bottles”
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Phthalate migration from plastic into food increases with heat.
“In general, it was observed that an increase in temperature caused an increase in the migration of phthalates into the simulant.”
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BPA can leach into food from plastic food storage containers, which is the case against plastic food contact.
“Bisphenol A can leach into food from the protective internal epoxy resin coatings of canned foods and from consumer products such as polycarbonate tableware, food storage containers, water bottles, and baby bottles.”
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Heat, not just age, drives how much BPA migrates — which is why hot-food storage in plastic is the concern.
“The degree to which BPA leaches from polycarbonate bottles into liquid may depend more on the temperature of the liquid or bottle, than the age of the container.”
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Honest caveat: food-grade silicone is regulated and generally considered inert, but is not strictly zero-migration; unreacted siloxanes can be present.
“unreacted cyclic volatile methylsiloxanes (cVMS), used in the starting materials or resulting from side reactions during the polymerisation process, can still be present in the final product and potentially migrate into foodstuff”
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BPA migration from baby bottles rises sharply with heat.
“by increasing the temperature from 40 to 95°C, the BPA migration increased four times in new baby bottles”
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Since 2012 the US FDA no longer allows BPA in baby bottles and sippy cups.
“The Food and Drug Administration said Tuesday that baby bottles and children's drinking cups could no longer contain bisphenol A, or BPA”
Common questions
- Is BPA-free plastic actually safe?
- "BPA-free" removes one compound but may substitute BPS or other bisphenols with similar activity — the sourced findings below discuss this.
- Does food-grade silicone leach chemicals?
- Platinum-cured food-grade silicone is stable and widely used for food contact; the findings below cite the material specs and safety basis.
- What is the safest material for food storage?
- Glass and stainless steel are inert; food-grade silicone is a flexible alternative. See the sourced picks linked below.
Compiled from our evidence database by The Amazonia Editors · Last reviewed 2026-06-28