I've tried putting f/t in a ziplock bag then placing it in hot water, but sometimes I get water in the bag and my bp doesn't want anything to do with it. I let one sit out for about 3 hours to unthaw then placed it under a heat lamp to get the temp up so it will seem more like a live rat. The problem with this is I don't get an even temp. One part will be 100 degrees and another part will be 80 degrees. I've had the guts pop open on 3 rats so far. I'm guessing this is from overheating.

What is the ideal temp for the food anyway? I have an infra-red thermometer to get the temp.