system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 How does milk put the flame out in your mouth after eating spicy food?

After eating spicy food, if the heat is too much to handle, you drink milk. It makes it less worse, but why is that?
gpt
Spicy food is spicy because of an oily compound called capsaicin. Oil isn’t soluble in water so drinking water doesn’t wash it off, it just glides over it. The fat and protein in milk bind to the capsaicin and dissolve the oily compounds, removing it from your mouth when you swallow.