Hey guys, In this video I use liquid propane as an analogue to liquid nitrogen. Its easy, I just invert a propane cylinder and the propane comes out a a liquid. This liquid is very cold. about -40 degrees! I acts just like liquid nitrogen, freezing plants and stuff. I normally do not put warnings on my video, but this is very dangerous. don't be stupid. Propane is an explosively flammable gas. If you must attempt this, do it outside, away from buildings and structures. preferably on a windy