There's enough heat in your fingers to flash the first bit of liquid off, once that's gone, which is about 3 seconds you'll start to get a mild frost bite. But you're not going to leave your fingers in it are you? Perhaps some people do .
R410a boils at -51°c at atmospheric pressure and I've always managed to avoid being burnt, you just don't leave your fingers in it.
R410a boils at -51°c at atmospheric pressure and I've always managed to avoid being burnt, you just don't leave your fingers in it.