Not much to add here but I get a regular sized coffee cup, fill it with hot tap water, put the pinky in a small ziploc, then put it in the water. I give it at least 8-10 minutes as it's unlikely that the 115-120F water will cook it but I want to be certain not to leave any ice in the pinky as it can cause a regurge AFAIK. I then stick the warm pinky in the feeding container and sure as rain, Selene has it down in about 2-3 minutes (which she is now ready for pinkies x2 as she weighs about 16G) So I'm going to move her up a feeding stage next time...