In the opening scene, despite taking two long drinks of the root beer, it is obvious that Rom is not drinking at all. The liquid level never changes and the bottle is still very full in the last shot before the credits.
Neither Quark's, nor Odo's breath is showing despite the constant refrain that things are "so cold" on the L-class planet.
When Odo breaks his leg he is shown wearing the silver thermal pants. Then in the next shot when he's being dragged up the mountain, Quark is wearing the pants. Highly unlikely they would have swapped while Odo was that injured.
After the explosion it is extremely obvious that a stage hand is waving a CO2 fire extinguisher around just behind the deck wall to create 'smoke'.
Despite being "so cold" that it requires that they wear (and share) a survival suit, there's a waterfall freely flowing with no ice anywhere to be seen.
This was some explosion. One could see the systems failures happening, but, the field rations and the survival suits is stretching it.