Yes beer will help flush your system, but you have to drink water aswell to keep from dehydrating. Cocaine is not water soluble so it prolongs the flushing of coke fron your system.  You sweat coke out your system to speed the process up,

Cocaine is not water soluble, therefore water does not help flush out coke. Alcohol will help flush out coke faster than it would flush out  naturally. I've passed drug test for coke a day in a half after using by drinking a lot beer the day after use. It really depends on how much coke … Read more