I feed FT, and Since i need to cross a room with his dinner i make sure the food is at least 115 degrees and it does cool to 105 by the time i get it to his viv and get it opened and offer it to him. I check it with a temp gun, to make sure it is the right temp, I also found that the head end stays colder longer then the body so i always check the skull end for temp. Hope this helps.