system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it okay to eat steak when it’s pink in the middle, but not hamburger patties?
gpt
The germs that make you sick are on the surface of the meat.  Ground beef is a surface area bonanza so you cook it all the way or face the risk.  Searing the steak is all you need to do because the center has no germs.