Eli5: when so much food packaging these days uses plastic or metal, how come flour is often just wrapped in paper?

Question

Eli5: when so much food packaging these days uses plastic or metal, how come flour is often just wrapped in paper?

In: 25

Answer 1

Dust Explosion Using Corn Starch [https://youtu.be/gLFUlDv8n8M](https://youtu.be/gLFUlDv8n8M) “this experiment can be somewhat dangerous”