Question Drinking coffee after drinking alcohol: Answers Decreases blood alcohol concentration. Cancels the effect of the alcohol. Has no effect on blood alcohol concentration. Increases blood alcohol concentration. Explanation Drinking coffee will not reduce your blood alcohol concentration (BAC). While it may help you to stay awake, it cannot change your BAC or make you sober. Take a FREE Practice Test Now This questions appears in the following tests: District Of Columbia Practice Test Colorado Practice Test Missouri Practice Test Florida Practice Test Virginia Practice Test New Hampshire Practice Test Michigan Practice Test New Jersey Practice Test Nevada Practice Test Texas Practice Test Ohio Practice Test Iowa Practice Test Rhode Island Practice Test Maine Practice Test Louisiana Practice Test Idaho Practice Test Wisconsin Practice Test Massachusetts Practice Test New York Practice Test Washington Practice Test North Carolina Practice Test Oregon Practice Test Vermont Practice Test Minnesota Practice Test North Dakota Practice Test Indiana Practice Test Hawaii Practice Test Utah Practice Test Montana Practice Test Alaska Practice Test