When you cut into a steak, chicken breast or pork chop to check if it is done grilling, you release the juices and moisture that keep your meat tender, rather than tough. So rather than cutting into your meat to determine whether it is ready, thereby drying it out, use this palm trick to figure out how well done they are.
Make an “OK” sign with your hand, touching the tip of your thumb to the tip of your pointer finger to form a circle. Feel the fleshy part of your palm, just below your thumb. This is how the center of a rare piece of meat will feel.
Now touch your thumb to your middle finger, and feel the same part of your palm again, to see how medium-rare should feel. Continue with your remaining fingers; the firmness of your palm when you touch your thumb to your ring finger translates to the feel of a medium cook, and the pinky-thumb ring shows how a well-done steak should feel.