Not for too long. It was in water that was too hot. The only reason I mentioned it was that the OP said "was heated up in hot, not boiling, water". I took that to mean really hot water. I might be wrong there but I def have first hand experience. I did it in extremely hot water to speed up the process and I wasted a mouse by basically cooking it. My snake walked up and said "Dude, I said thawed and warmed. Not well done". And that was that.