For a rare blue steak, it shouldn't be warmer than 110-115 degrees Fahrenheit inside. It will have a nice sear on the outside ...

Let's face it, though; even medium rare and rare steaks aren't 100% completely safe since they're only cooked to about 130 ...

This takes about 10 minutes of cooking on each side for a 1-inch thick steak. As with a medium-rare steak, let it rest for about 10 minutes before serving.

How to know whether the steak is rare, medium rare or medium In general (and it depends on the cut of beef and the heat of the grill), a 1½-inch-thick steak will cook to medium rare in 12 to 16 ...