Is recycled paper food packaging safe for hot, wet, or greasy food?
Use recycled paper food packaging for short contact only. Food-contact recycled paperboard can release substances, and food-contact papers can release mineral oil hydrocarbons under test conditions.
Recycled paper food packaging can reduce waste, but it is not automatically the best food-contact surface. Food-contact recycled paperboard can contain trace elements, additives, phthalates, and other substances from the paper stream.
The practical rule is simple: use paper packaging for transport and short contact. Do not use it for storage, reheating, or serving hot, wet, or greasy meals.
What the evidence says
A 2024 Food Additives and Contaminants study tested food-contact recycled paperboard extracts and found trace elements, additives, and substances including phthalates. A 2021 Food Additives and Contaminants study found mineral oil hydrocarbons in food-contact papers and measured migration into food simulants under test conditions.
Better packaging rule
- Use paper packaging for dry, short-contact foods when needed.
- Move hot or greasy takeout to a plate or bowl at home.
- Store leftovers in glass, ceramic, or stainless steel.
- Do not microwave food in recycled paper packaging unless the package clearly says it is made for that use.
Glass storage jars are a practical swap for leftovers and meal prep because they reduce repeated food contact with disposable packaging.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Chemical and toxicological characterization of food contact recycled paperboard extracts. | Food Addit Contam Part A Chem Anal Control Expo Risk Assess | 2024 |
| Migration of mineral oil hydrocarbons from food contact papers into food simulants and extraction from their raw materials. | Food Addit Contam Part A Chem Anal Control Expo Risk Assess | 2021 |
What to use instead
Use glass storage jars for leftovers instead of storing food in recycled paper packaging.
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