what temp does hand warmers get
I read up a bunch of ways to do this and I believe my method worked out very well. I basically pissed in a spare bottle I used to practice with and attached the Toasti Toes warmer to it. It's important to get the Toasti Toes because it's max temperature is roughly 109 degrees Fahrenheit whereas the Hand Warmers can get up to 140. After much testing I found the urine stabilized around 102 with the heater attached.