but they dont have soda in medieval times

they have ale.

but ale does not come in twist-top plastic bottles sir
your logic decays my brain as if nurgle himself touched it

actually the skaven make an ale with warpstone dust,...called Skavenbrew

dont know if its still in their rulebook, but it used to be an item they could use in battle

yes it is

btw, did you see that inquisitor animation on youtube involving warp dust?