ELi5 Why everytime I put a drink down like Milk it makes a ring on the table

Question

(EXPLAINED)

I know im taking the explain like im 5 thing to literally but I’ve never known yknow

In: Other

Answer 1

You mean a cold glass of milk? Air has a small amount of water vapour in it. When exposed to cold temperatures, this water vapour changes to water, which makes those rings.