This may be a stupid idea, but to my knowledge metals is are some of the best materials when it comes to being easily recyclable.
Ignoring the cost and reusability, wouldn’t recyclable disposable cups made of metal be a better deal than the largely incinerated plastic cups?
The mcDonalds here gives us sturdy plastic cups that that’ll buy back from you. (or you can leave them after dinner).
I’m going to have a look at this wax paper solution, that’s an interesting option! Thank you!