We cook steak indoors on a cast iron griddle. First we heat it up to a medium-high temp, then sprinkle salt on the dry griddle. Throw the steak on, cook for a few minutes, turn over, and cook for a few more. The salt is not just for flavor; it makes the steak quite juicy.

As for bacteria, the bacteria grows on the surface. That's why you should always make sure ground beef is cooked completely through, but a good sear on a steak will kill what you need to kill.