I feed small (60-90g) F/T rats. I pull them out at 5pm and let them thaw at room temp until 8:30-9pm (so they sit out for 3.5-4 hours). By that time, they are just a little cold and not frozen. I put them in a plastic bag and let them sit in hot water from the sink (not microwaved or boiled). After 10 minutes, I pull them out one by one (my temp gun usually says they are about 90-95*). I usually run the hairdryer on the rat for about 45 seconds on low heat, which gets them to 100*. I dangle the rat in the front of the tub and let my BP's come to the rat, strike it and the rest is history.