https://www.greenpeace.org/static/planet4-international-stateless/2026/02/4f252420-hidden-health-risks-of-plastic-packaged-ready-meals-final.pdf
ARE WE COOKED?
THE HIDDEN HEALTH RISKS OF PLASTIC-PACKAGED READY MEALS
SUMMARY
Ready meals and takeaways promise convenience - hot food, fast. The labels on the plastic trays reassure us that they are ‘safe’ to heat in a microwave or oven. But are we exposed to potentially dangerous microplastics and chemical additives along with our food?
We decided to check. Greenpeace International's analysis of 24 research papers in peer-reviewed scientific journals found that the plastics we use to package our food are exposing us to health risks – and none more so than heated ready meals and takeaways.
Specifically:
- Plastic containers can release microplastics and toxic chemicals into our food.
- Leaching into food dramatically increases when the food is heated in the plastic packaging.
Regulators and the industry are failing to act on the plastics problem, which is already
causing a global waste crisis, yet the production of plastic is set to more than double by 2050 from current levels. The fossil fuel and petrochemical industry is banking on this for its future growth – and relying on the growing trend for plastic packaged ready meals.
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https://foodpackagingforum.org/news/consumer-plastics-can-release-billions-of-microplastics-report-finds
Consumer plastics can release billions of microplastics, report finds
Report from
Plastic Soup Foundation reviews scientific literature on microplastics; highlights sources in five consumer product categories, including food; shares FCMiNo as searchable resource for evidence on microplastics in food from food contact articles; describes challenges with quality of scientific studies; asserts need for action
April 27, 2026
Catherine Crawford-Brown
On April 8, 2026, Plastic Soup Foundation published a scoping report titled “
Exploring Everyday Microplastic Exposures: Recent evidence of products delivering microplastic to humans.” Researched and written by Heather A. Leslie, an independent scientist and consultant with academic experience in sustainability, plastics, chemicals, environment, and health, the report outlines how humans are exposed to microplastics through the everyday use of plastic products.
Based on 350 peer-reviewed articles, the report demonstrates that “common consumer plastic products can collectively shed billions of microplastics at close range.” Evidence for microplastic exposure was shown across five key product categories: food, indoor, outdoor, children’s, and personal care.
Humans are exposed to microplastics through food packaging, other sources
Within the food category, heating or microwaving plastic containers (e.g., tea bags, takeout containers) and using plastic kitchen utensils (e.g., cutting boards, mixing bowls) were found to be “prolific microplastic generators.” The report specifically highlighted findings from the Food Packaging Forum (FPF) demonstrating that the normal and intended use of everyday food packaging can result in microplastic migration (FPF reported). It pointed to FPF’s FCMiNo database as a searchable resource compiling scientific evidence for microplastics in food that was in contact with plastic food contact articles. Indeed, many of the studies reviewed in the report’s “Food packaging sources” section can be found in FCMiNo.
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Do you prefer to drink from an aluminum can, rather than a plastic bottle, to avoid the various chemicals leaching from the plastic? Surprise! Your "aluminum can” is essentially a plastic bag, reinforced with an aluminum shell.
Do you like tomato paste and tomato sauce from steel cans? Surprise! Steel cans have plastic liners to protect the metal from their contents, if the contents are acidic (like tomato products) the plastic linings leach chemicals even faster.
Cooking oil, vinegar, from a plastic bottle?
Bad idea! Many of the chemicals leached from plastics are "fat soluble."
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