Yes, there are certainly a few inaccuracies around.
Hence, in proper Mythbuster style, I think we should take on the myth of the exploding booze barrel.
The myth is that, when set on fire, booze barrels will explode in a big fireball. This is believed to be caused by the flammable booze contained within catching on fire and undergoing rapid combustion, which to the layman looks an aweful lot like a fireball or an explosion.
Another explanation is that the apparent explosion is actually merely booze vapor, caused by the booze evaporating when subjected to the heat caused by the fire.
In order to test this myth, we should set up a booze stockpile and set it on fire. After observing what happens in that case, we should mod the raws to set the boiling point of booze much higher and see if we can observe a difference. Another question is whether booze, once vaporized, can catch on fire. The best test I can think of for this would be to start a fire near to, but not touching a booze stockpile, with a barrier such as a channel in the middle, then change the raws so that the booze immediately evaporates. If the booze vapor really can catch fire, then it is likely that the fire will spread over to the other side once the booze cloud touches the fire. If the booze actually evaporates when the barrels are set on fire, and then the vapor ignites, we can still call it a fireball of sorts.