I don't understand? They are a catalytic reaction of lighter fluid on platinum. It's a controlled combustion with CO2, water as a result. They get hot but not hot enough to touch.
Type: Posts; User: NJTroutstalker
I don't understand? They are a catalytic reaction of lighter fluid on platinum. It's a controlled combustion with CO2, water as a result. They get hot but not hot enough to touch.
Try one of these bad boys.
They last up to 24 hours.
http://m.thewirecutter.com/reviews/the-best-hand-warmer/
I've used them for years.