People are just learning that the red juice in rare steak isn’t blood.

Everyone has their favorite way of serving up steak: rare, medium, or well done.

But before it’s garnished up on a plate, it can look pretty unappetizing while still in the shops or butchers.

You may have noticed a red liquid oozing out of the steak and presumed it was blood, well you’d be wrong.

People are reacting on social media after discovering what the pinkish-red liquid is.

“I was today years old when I learned that the red liquid in rare steak isn’t blood,” one X (formerly Twitter) user writes.

Another adds: “I did not know that!”

A third person says: “That’s worse, I don’t even know what that is.”

“This is upsetting,” somebody else comments.

So, what exactly is the pinkish-red liquid oozing out of the steak? Let’s start at the beginning…