Legend has it that some small noodles taste especially good and can even be addictive because of the addition of poppy husk ground into powder. Poppy is commonly known as opium.

It is said that the Trade and Industry Bureau once investigated and punished such crooked traders.

I've also eaten small noodles from one or two noodle shops, and they do taste good, and I want to eat them again. It's a different addiction than drug addiction though. It just tastes extra good.

Of course, I can't confirm if it's true. I heard it from someone, as if I've never seen it reported.