I use two tubs filled with hot water. What allows me to speed up my thawing time is a tea kettle! I pour boiling water (sounds crazy) into the tubs with already thawing rats. I don't pour much, just enough to give the water an extra kick of heat 1/2 way through thawing. I'm thawing 40+ rats and mice at a time and dumping cold water every 20 minutes can get annoying! I've had no problem with rats splitting or busting but I’ve only been doing it this way for six or so months.

Go Colts!