How do they make cups 100% from corn?

Question

I was just wondering what the process is in making these cups.

Answer 1

I'm sure they use like a lacquer of some kind to not only keep the kernels together but also make it leak proof

Answer 2

look for the article on george washington carver of the tuskeegee institute and henry ford.

they made plastic car body panels from corn.

part of the corn seed contains natural polymers like rubber trees.