What low temperature will my butane bottle stop working at?
When it comes to LPG people get confused by Freezing point and boiling point.
For butane gas, the freezing point is around -140 degrees Celsius, but the boiling point of butane is -2 degrees Celsius so your blue butane gas cylinder might not work as effectively in colder weather as low temperatures make it difficult to produce gas vapour.
Basically put we need a higher ambient outside temperature to boil the liquid gas off in the bottle to allow it to change to a vapour.
If you want a gas bottle that will work in lower temperatures change your gas bottle to a red exchange type or better still a GAS IT refillable.