![](https://coimages.sciencemuseumgroup.org.uk/41/414/large_thumbnail_1977_0734.jpg)
Samples of microwave food container susceptor film, made of aluminium and tin oxide variously.
![Examples of microwave disposable food container susceptor film](https://coimages.sciencemuseumgroup.org.uk/327/451/small_thumbnail_smg00178923.jpg)
![Examples of microwave disposable food container susceptor film](https://coimages.sciencemuseumgroup.org.uk/272/741/small_thumbnail_2017_0038__0001_.jpg)
Examples of microwave disposable food container susceptor film, used to cover ordinary paper board material, c. 1990s. Examples made of aluminium and tin oxide variously: one operating off the electric field and one magnetic field.