Plastic film and cling wrap
High releaseLDPE, PVC or PVDC film
The short answer
The highest surface-area-per-gram contact in a kitchen. Film is pressed directly against food, often fatty food, for the entire storage period, and PVC film brings plasticiser questions on top.
What actually drives release
- Direct film-to-food contact across the whole product surface
- Fat solubility, since many film additives are lipophilic
- Stretching the film, which is mechanical stress applied at wrapping
When it gets worse
- Wrapped around cheese, cured meat or anything fatty
- Microwaved, even briefly
- In contact with warm food that was wrapped before cooling
Better options
- Beeswax wrap
- Glass container with a lid
- Stainless steel tin
- A plate over the bowl
Where you'll find it
CheeseDeli meatSupermarket produce traysLeftovers
Scan what you actually buy
Packaging changes the answer more than the brand does. Scan your product with MicroPlastics for a 0–100 exposure score and a lower-plastic version of the same thing.
Scan my productFrequently Asked Questions
Does cling film leach microplastics?
The highest surface-area-per-gram contact in a kitchen. Film is pressed directly against food, often fatty food, for the entire storage period, and PVC film brings plasticiser questions on top.
What makes plastic film and cling wrap worse?
Wrapped around cheese, cured meat or anything fatty. Microwaved, even briefly. In contact with warm food that was wrapped before cooling.
What should I use instead of plastic film and cling wrap?
In order of preference: Beeswax wrap, Glass container with a lid, Stainless steel tin, A plate over the bowl. Packaging is usually the cheapest variable to change in any product decision.
Sources
- Earth Action with rePurpose Global (2026). Microplastic migration from food and beverage packaging (reported May 2026). Forbes.
- Qian N, Gao X, Lang X, et al. (2024). Rapid single-particle chemical imaging of nanoplastics by SRS microscopy. Proceedings of the National Academy of Sciences (PNAS).
- Winkler A, Santo N, Ortenzi MA, et al. (2022). Does mechanical stress cause microplastic release from plastic water bottles?. Water Research.
- Hernandez LM, Xu EG, Larsson HCE, et al. (2019). Plastic teabags release billions of microparticles and nanoparticles into tea. Environmental Science & Technology.