Why when you evaporate coffee and store the steam until it becomes liquid again, the liquid no longer has the color of coffee?

Question

I did this experiment one day because I was curious, sorry if it’s a stupid question

In: Chemistry

Answer 1

The reason that coffee looks brown is because tiny bits of the coffee bean are dissolved in the water. When you evaporate the coffee, only the water evaporates. The boiling point of the coffee bean pieces are WAY higher than the boiling point of the water. That means that you’re left with mostly pure water in the steam with no dissolved coffee.