“Methane is an explosion hazard in enclosed areas. Liquefied Methane floats on water and boils. The vapor cloud produced is FLAMMABLE.”
“The main hazard is its flammable, explosive nature. Methane is extremely difficult to detect without gas detection instruments because it is odorless, but it should be anticipated as being present in all manure storage areas. Some systems for storing the manure are more dangerous than others.”
https://nasdonline.org/48/d001616/manure-gas-dangers.html
Your Turn
Well, read the last sentence.
What’s flammable?
The vapor cloud is flammable.
Liquefied methane, ie LNG turns from liquid to gad (vapor) at more then -200° F.
There was no liquid methane just hanging around a cattle barn.