Firebrew is notorious for it’s effect if too much is consumed. It goes down bitter (or sweet if the brewer hasn’t skimped on the more potent ingredients) and comes up as a hot torturous bile if the drinker has consumed too much or can’t handle it. In fact the return journey is said to be so painful that in times past it was used as a form of torture where a person was forced to drink vast amounts over several days only to end up doing what was asked of them or literally melting from the inside out.