Warning: This may destroy cheeseburgers for you forever.
Hydrochloric acid is a strong compound that has many industrial uses, from removing rust from steel to processing leather. It's also found in your stomach.
In fact, a stomach-churning episode from The University of Nottingham's Periodic Table of Videos YouTube series reveals what happens when you dump a still-warm McDonald's cheeseburger in a vat of hydrochloric acid. Just watch the video above.
"As you're watching me, churning away in your stomach is acid which is one of the first stages in which food is broken down into usable components to give you energy or to make you fat," our favorite Einstein-look-a-like Martyn Poliakoff, a chemist at the university, says in the video.
As you'll see, after three and a half hours, that acid makes a burger look... to put it lightly, the opposite of appetizing.